* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* ── DESIGN.md Warm Parchment Palette ── */
    --parchment:    #f5f4ed;
    --ivory:        #faf9f5;
    --pure-white:   #ffffff;
    --warm-sand:    #e8e6dc;
    --dark-surface: #30302e;
    --deep-dark:    #141413;

    /* Text */
    --near-black:   #141413;
    --charcoal:     #4d4c48;
    --olive-gray:   #5e5d59;
    --stone-gray:   #87867f;
    --dark-warm:    #3d3d3a;
    --warm-silver:  #b0aea5;

    /* Brand */
    --terracotta:   #c96442;
    --coral:        #d97757;
    --error-red:    #b53333;
    --focus-blue:   #3898ec;

    /* Borders */
    --border-cream: #f0eee6;
    --border-warm:  #e8e6dc;
    --border-dark:  #30302e;
    --ring-warm:    #d1cfc5;
    --ring-deep:    #c2c0b6;

    /* Legacy aliases — keep for component compatibility */
    --gold-primary: #c96442;
    --gold-accent:  #d97757;
    --gold-light:   #e8c4b8;
    --gold-dark:    #a04d31;
    --gold-glow:    rgba(201, 100, 66, 0.20);
    --silver:       #87867f;
    --silver-light: #b0aea5;

    --bg-dark:      var(--parchment);
    --bg-secondary: var(--ivory);
    --bg-elevated:  var(--pure-white);
    --bg-glass:     rgba(245, 244, 237, 0.85);

    --text-primary:   var(--near-black);
    --text-secondary: var(--olive-gray);
    --text-tertiary:  var(--stone-gray);

    --border-color:  var(--border-cream);
    --border-subtle: var(--border-warm);

    --shadow-sm: 0 2px 8px rgba(20, 20, 19, 0.06);
    --shadow-md: 0 4px 24px rgba(20, 20, 19, 0.08);
    --shadow-lg: 0 8px 40px rgba(20, 20, 19, 0.10);
    --shadow-gold: 0 4px 16px rgba(201, 100, 66, 0.18);

    /* Ring shadows per DESIGN.md */
    --ring-sand: 0px 0px 0px 1px var(--ring-warm);
    --ring-terracotta: 0px 0px 0px 1px var(--terracotta);
    --whisper: rgba(20, 20, 19, 0.05) 0px 4px 24px;

    --radius-sm:  8px;
    --radius-md:  12px;
    --radius-lg:  16px;
    --radius-xl:  20px;
    --radius-2xl: 32px;

    --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--parchment);
    color: var(--near-black);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* clip (không phải hidden) → chặn left-right scroll mà KHÔNG phá position:sticky */
    overflow-x: clip;
}
html { max-width: 100%; overflow-x: clip; }
/* Ảnh/media không bao giờ tràn ngang viewport */
img, svg, video, canvas, table { max-width: 100%; }

::selection {
    background: rgba(201, 100, 66, 0.15);
    color: var(--near-black);
}

:focus-visible {
    outline: 2px solid var(--focus-blue);
    outline-offset: 2px;
}

html {
    scroll-behavior: smooth;
}

/* ── App Layout ── */
.app-container {
    display: grid;
    /* minmax(0,1fr) (not 1fr=minmax(auto,1fr)) → track can shrink below content
       min-content; without this the main column blows past the viewport on mobile
       and charts get clipped by overflow-x:clip instead of resizing. */
    grid-template-columns: 280px minmax(0, 1fr);
    grid-template-rows: 64px 1fr;
    min-height: 100vh;
    max-width: 2000px;
    margin: 0 auto;
}

.app-container.no-sidebar .sidebar {
    display: none;
}

.app-container.no-sidebar {
    grid-template-columns: minmax(0, 1fr);
}

/* ── Unified Top Bar ── */
.app-topbar {
    grid-column: 1 / -1;
    background: var(--ivory);
    border-bottom: 1px solid var(--border-cream);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    height: 64px;
}

.app-topbar-left {
    display: flex;
    align-items: center;
    gap: 2rem;
    height: 100%;
}

.app-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.app-brand-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--terracotta), var(--coral));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Lora', Georgia, serif;
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--ivory);
    flex-shrink: 0;
}

.app-brand-name {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--near-black);
    white-space: nowrap;
}

/* ── Workspace Nav (inline tabs) ── */
.workspace-nav {
    display: flex;
    align-items: stretch;
    gap: 0;
    height: 100%;
}

.workspace-tab {
    display: inline-flex;
    align-items: center;
    padding: 0 1rem;
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--olive-gray);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    cursor: pointer;
    white-space: nowrap;
    transition: color 0.18s ease-out, border-color 0.18s ease-out;
}

.workspace-tab:hover {
    color: var(--near-black);
}

.workspace-tab.active {
    color: var(--near-black);
    font-weight: 500;
    border-bottom-color: var(--terracotta);
}

/* ── Top Bar Right Cluster ── */
.app-topbar-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.header-btn {
    padding: 0.45rem 1rem;
    background: transparent;
    border: 1px solid var(--border-warm);
    color: var(--olive-gray);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--ease-out);
}

.header-btn:hover {
    border-color: var(--terracotta);
    color: var(--terracotta);
    box-shadow: var(--ring-sand);
}

.header-btn.primary {
    background: var(--terracotta);
    border-color: var(--terracotta);
    color: var(--ivory);
    font-weight: 500;
    border-radius: var(--radius-md);
    box-shadow: 0px 0px 0px 0px var(--terracotta), 0px 0px 0px 1px var(--terracotta);
}

.header-btn.primary:hover {
    background: var(--coral);
    border-color: var(--coral);
    box-shadow: var(--shadow-gold);
}

.header-btn.topbar-text-btn {
    text-decoration: none;
    font-size: 0.8125rem;
    padding: 0.35rem 0.75rem;
}

.topbar-icon-btn {
    background: none;
    border: none;
    color: var(--olive-gray);
    cursor: pointer;
    padding: 0.4rem 0.5rem;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.18s, background 0.18s;
}
.topbar-icon-btn:hover {
    color: var(--near-black);
    background: var(--border-cream);
}

.topbar-dd-lang-btn {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    font-size: inherit;
    font-family: inherit;
}

/* ── Topbar dropdowns ── */
.topbar-dropdown-wrap {
    position: relative;
}

.topbar-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 180px;
    background: var(--ivory);
    border: 1px solid var(--border-cream);
    border-radius: 12px;
    box-shadow: rgba(0,0,0,0.08) 0px 8px 24px, 0px 0px 0px 1px var(--border-cream);
    z-index: 200;
    overflow: hidden;
    padding: 4px 0;
}

.topbar-dropdown.open {
    display: block;
}

.topbar-dropdown-item {
    display: block;
    padding: 9px 16px;
    font-size: 0.875rem;
    color: var(--olive-gray);
    text-decoration: none;
    white-space: nowrap;
    transition: background 0.15s, color 0.15s;
}

.topbar-dropdown-item:hover {
    background: var(--border-cream);
    color: var(--near-black);
}

.topbar-dropdown-divider {
    height: 1px;
    background: var(--border-cream);
    margin: 4px 0;
}

.lang-btn {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    padding: 0.35rem 0.75rem;
    min-width: 40px;
    text-align: center;
}

/* ── User chip (avatar + logout icon) ── */
.user-chip {
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--pure-white);
    border: 1px solid var(--border-cream);
    border-radius: 99px;
    padding: 3px 2px 3px 3px;
    box-shadow: var(--whisper);
}

.user-avatar-link {
    display: flex;
    align-items: center;
    border-radius: 50%;
    text-decoration: none;
    flex-shrink: 0;
}

.user-avatar {
    width: 28px;
    height: 28px;
    background: var(--warm-sand);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--charcoal);
    text-transform: uppercase;
    user-select: none;
    flex-shrink: 0;
    transition: background 0.2s;
}

.user-avatar-link:hover .user-avatar {
    background: var(--border-warm);
}

.chip-logout {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--stone-gray);
    padding: 4px 7px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 99px;
    transition: color 0.2s, background 0.2s;
    line-height: 0;
}

.chip-logout:hover {
    color: var(--error-red);
    background: rgba(181, 51, 51, 0.07);
}


/* ── Sidebar Context panels ── */
.sidebar-context {
    display: none;
}

.sidebar-context.active {
    display: block;
}

/* ── KM Sidebar Nav (Knowledge Market workspace) ── */
.km-nav-group {
    margin-bottom: 0.5rem;
}

.km-nav-group-title {
    font-size: 0.625rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--stone-gray);
    padding: 16px 12px 6px;
    line-height: 1.6;
}

/* First group title in any sidebar context should sit flush to top */
.sidebar-context.active > .km-nav-group:first-child .km-nav-group-title {
    padding-top: 0;
}

.km-nav-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    border-radius: 8px;
    color: #4d4c48;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.km-nav-item:hover {
    background: #f0eee6;
    color: var(--near-black);
}

.km-nav-item.active {
    background: var(--warm-sand);
    color: var(--near-black);
    font-weight: 500;
    border-left: 3px solid var(--terracotta);
    padding-left: calc(12px - 3px);
}

.km-nav-item--cta {
    color: var(--terracotta);
    font-weight: 500;
}

.km-nav-item--cta:hover {
    background: rgba(201, 100, 66, 0.08);
}

.km-nav-item--warning {
    color: #d97757;
}

.km-nav-item--admin {
    color: var(--terracotta);
    font-weight: 600;
}

.km-nav-badge {
    display: inline-flex;
    align-items: center;
    background: #e8e6dc;
    color: #5e5d59;
    font-size: 0.6875rem;
    border-radius: 999px;
    padding: 1px 6px;
    line-height: 1.4;
    font-weight: 400;
    flex-shrink: 0;
}

.km-nav-balance {
    font-variant-numeric: tabular-nums;
}

/* ── Sidebar ── */
.sidebar {
    background-color: var(--ivory);
    border-right: 1px solid var(--border-cream);
    padding: 1rem 1rem 1.5rem;
    position: sticky;
    top: 64px;
    height: calc(100vh - 64px);
    overflow-y: auto;
    z-index: 1;
    display: flex;
    flex-direction: column;
}

.sidebar-section {
    margin-bottom: 1.75rem;
}

.sidebar-footer {
    margin-top: auto;
    padding: 12px 0;
    border-top: 1px solid var(--border-cream);
    width: 100%;
}

.sidebar-bottom-link {
    padding: 7px 12px;
    font-size: 0.75rem;
    color: var(--stone-gray);
    display: block;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 6px;
}

.sidebar-bottom-link:hover {
    color: var(--terracotta);
    background: rgba(201, 100, 66, 0.05);
}

.sidebar-heading {
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--stone-gray);
    margin-bottom: 0.75rem;
    padding: 0 0.625rem;
}

/* Sidebar buttons */
.sidebar-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-sm);
    color: var(--olive-gray);
    cursor: pointer;
    transition: all 0.2s var(--ease-out);
    font-size: 0.8125rem;
    margin-bottom: 0.375rem;
}

.sidebar-btn:hover {
    border-color: rgba(201, 100, 66, 0.3);
    background: rgba(201, 100, 66, 0.04);
    color: var(--terracotta);
}

.sidebar-btn.primary {
    background: rgba(201, 100, 66, 0.06);
    border-color: rgba(201, 100, 66, 0.2);
    color: var(--terracotta);
}

.sidebar-btn.danger {
    background: rgba(181, 51, 51, 0.05);
    border-color: rgba(181, 51, 51, 0.2);
    color: var(--error-red);
}

.sidebar-btn.danger:hover {
    background: rgba(181, 51, 51, 0.10);
    border-color: rgba(181, 51, 51, 0.3);
}

.sidebar-link {
    text-decoration: none;
    display: block;
}

.sidebar-user-info {
    padding: 0.5rem 0.75rem;
    background: rgba(201, 100, 66, 0.05);
    border: 1px solid rgba(201, 100, 66, 0.15);
    border-radius: var(--radius-sm);
    margin-bottom: 0.375rem;
}

.sidebar-user-email {
    font-size: 0.8125rem;
    color: var(--terracotta);
    font-weight: 500;
    word-break: break-all;
}

.mobile-only {
    display: none;
}

.nav-list {
    list-style: none;
}

.nav-item {
    margin-bottom: 0.2rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--olive-gray);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s var(--ease-out);
    position: relative;
    cursor: pointer;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--terracotta);
    border-radius: 0 3px 3px 0;
    transition: height 0.25s var(--ease-out);
}

.nav-link:hover {
    background-color: rgba(201, 100, 66, 0.05);
    color: var(--near-black);
}

.nav-link.active {
    background-color: var(--warm-sand);
    color: var(--near-black);
    border-left: 3px solid var(--terracotta);
    padding-left: calc(0.75rem - 3px);
}

.nav-link.active::before {
    display: none; /* replaced by explicit border-left on active */
}

.nav-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--warm-sand);
    font-size: 0.875rem;
    flex-shrink: 0;
    transition: all 0.2s var(--ease-out);
}

.nav-link.active .nav-icon {
    background: rgba(201, 100, 66, 0.12);
    color: var(--terracotta);
}

.nav-content {
    flex: 1;
}

.nav-btm-content {
    font-size: 0.68rem;
    color: var(--stone-gray);
    font-weight: 400;
}

.nav-content h4 {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.1rem;
    color: var(--near-black);
}

.nav-meta {
    font-size: 0.68rem;
    color: var(--stone-gray);
    font-weight: 400;
}

.nav-separator {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0.625rem 0.4rem;
    margin: 0.2rem 0;
    list-style: none;
}

.nav-separator span {
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--stone-gray);
    white-space: nowrap;
}

.nav-separator::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-cream);
}

.subnav-list {
    list-style: none;
    max-height: none;
    overflow: visible;
    margin-left: 0.875rem;
    margin-top: 0.25rem;
}

.subnav-item {
    margin-bottom: 0.1rem;
}

.subnav-item .nav-link {
    padding: 0.45rem 0.625rem;
    font-size: 0.8125rem;
}

.subnav-item .nav-link::before {
    display: none;
}

.subnav-item .nav-content h4 {
    font-size: 0.8125rem;
    font-weight: 400;
    line-height: 1.4;
}

/* ── Main Content ── */
.main-content {
    padding: 1.25rem 1.5rem;
    overflow-y: auto;
    min-width: 0; /* allow grid item to shrink so charts resize instead of overflowing */
    position: relative;
    z-index: 1;
    background: var(--parchment);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ── Article ── */
.article-featured {
    background: var(--ivory);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 3rem;
    box-shadow: var(--whisper);
}

.article-header {
    padding: 2rem 2.5rem 1.75rem;
    border-bottom: 1px solid var(--border-cream);
    background: var(--pure-white);
}

.article-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.75rem;
    background: rgba(201, 100, 66, 0.07);
    border: 1px solid rgba(201, 100, 66, 0.18);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--terracotta);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 1.25rem;
}

.article-title {
    font-family: 'Lora', Georgia, serif;
    font-size: 2.25rem;
    font-weight: 500;
    line-height: 1.25;
    color: var(--near-black);
    margin-bottom: 1.25rem;
    letter-spacing: -0.01em;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 2rem;
    color: var(--stone-gray);
    font-size: 0.8125rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.meta-item i {
    color: var(--terracotta);
    font-size: 0.8rem;
}

.article-body {
    padding: 2.5rem;
    background: var(--pure-white);
}

.article-text {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--olive-gray);
}

.article-text p {
    margin-bottom: 1.5rem;
}

.article-text strong {
    color: var(--near-black);
    font-weight: 600;
}

.article-disclaimer {
    font-size: 0.875rem;
    color: var(--stone-gray);
    border-left: 3px solid var(--border-warm);
    padding-left: 1rem;
    margin-top: 1.5rem;
}

/* ── Indicators Grid ── */
.indicators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.indicator-card {
    background: var(--pure-white);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: all 0.3s var(--ease-out);
    position: relative;
    overflow: hidden;
    box-shadow: var(--whisper);
}

.indicator-card:hover {
    border-color: rgba(201, 100, 66, 0.25);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), var(--ring-sand);
}

.indicator-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.indicator-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: rgba(201, 100, 66, 0.08);
    border: 1px solid rgba(201, 100, 66, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s var(--ease-out);
    color: var(--terracotta);
}

.indicator-card:hover .indicator-icon {
    box-shadow: var(--ring-sand);
}

.indicator-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--near-black);
}

.indicator-value {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.875rem;
    font-weight: 500;
    color: var(--terracotta);
    margin-bottom: 0.375rem;
}

.indicator-change {
    font-size: 0.8125rem;
    color: var(--stone-gray);
}

.indicator-change.positive {
    color: #2d7a4f;
}

.indicator-change.negative {
    color: var(--error-red);
}

.indicator-meta {
    font-size: 0.7rem;
    color: var(--stone-gray);
    margin-top: 1rem;
    padding-top: 0.875rem;
    border-top: 1px solid var(--border-cream);
}

/* ── Data Portal / Section ── */
.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-title {
    font-family: 'Lora', Georgia, serif;
    font-size: 2.25rem;
    font-weight: 500;
    color: var(--near-black);
    margin-bottom: 0;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    line-height: 1.20;
}

.section-title .chart-info-icon {
    font-family: sans-serif;
    flex-shrink: 0;
    font-size: 13px;
    width: 22px;
    height: 22px;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--olive-gray);
    max-width: 680px;
    line-height: 1.65;
}

.datasets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 1.25rem;
    margin-bottom: 3rem;
}

/* ── Dataset Cards ── */
.dataset-card {
    background: var(--pure-white);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: all 0.3s var(--ease-out);
    position: relative;
    overflow: hidden;
    box-shadow: var(--whisper);
}

.dataset-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--terracotta);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s var(--ease-out);
}

.dataset-card:hover {
    border-color: rgba(201, 100, 66, 0.25);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), var(--ring-sand);
}

.dataset-card:hover::before {
    transform: scaleX(1);
}

.dataset-card.disabled {
    opacity: 0.5;
}

.dataset-card.disabled:hover {
    transform: none;
    border-color: var(--border-cream);
    box-shadow: var(--whisper);
}

.dataset-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.save-interest-btn {
    background: transparent;
    border: 1px solid var(--border-warm);
    border-radius: var(--radius-sm);
    padding: 5px 10px;
    cursor: pointer;
    color: var(--stone-gray);
    font-size: 0.8125rem;
    transition: all 0.2s var(--ease-out);
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.save-interest-btn:hover {
    border-color: var(--terracotta);
    color: var(--terracotta);
    box-shadow: var(--ring-sand);
}

.save-interest-btn.saved {
    background: var(--terracotta);
    border-color: var(--terracotta);
    color: var(--ivory);
}

.save-interest-btn.saved:hover {
    background: var(--coral);
    box-shadow: var(--shadow-gold);
}

.dataset-info h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--near-black);
    margin-bottom: 0.375rem;
}

.dataset-desc {
    font-size: 0.875rem;
    color: var(--olive-gray);
    line-height: 1.6;
    margin-bottom: 1.125rem;
}

.dataset-stats {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.75rem;
    color: var(--stone-gray);
}

.stat-item i {
    color: var(--terracotta);
    font-size: 0.8rem;
}

.dataset-actions {
    display: flex;
    gap: 0.625rem;
}

/* ── Buttons ── */
.btn {
    flex: 1;
    padding: 0.625rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--ease-out);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    border: none;
}

.btn-primary {
    background: var(--terracotta);
    color: var(--ivory);
    border-radius: var(--radius-md);
    box-shadow: 0px 0px 0px 0px var(--terracotta), 0px 0px 0px 1px var(--terracotta);
}

.btn-primary:hover:not(:disabled) {
    background: var(--coral);
    box-shadow: var(--shadow-gold);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-warm);
    color: var(--olive-gray);
}

.btn-secondary:hover {
    border-color: rgba(201, 100, 66, 0.3);
    color: var(--terracotta);
    background: rgba(201, 100, 66, 0.04);
    box-shadow: var(--ring-sand);
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ── API Section ── */
.api-section {
    background: var(--ivory);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-xl);
    padding: 2.25rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--whisper);
}

.api-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(201, 100, 66, 0.3), transparent);
}

.api-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.api-header h3 {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--near-black);
}

.api-description {
    color: var(--olive-gray);
    margin-bottom: 1.25rem;
    line-height: 1.65;
    font-size: 0.9375rem;
}

.api-endpoints {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.api-endpoint {
    background: var(--warm-sand);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Consolas', monospace;
    font-size: 0.8125rem;
    color: var(--charcoal);
    display: flex;
    align-items: center;
    gap: 0.875rem;
    transition: border-color 0.2s var(--ease-out);
}

.api-endpoint:hover {
    border-color: rgba(201, 100, 66, 0.25);
    box-shadow: var(--ring-sand);
}

.method {
    color: #2d7a4f;
    font-weight: 700;
    font-size: 0.7rem;
    letter-spacing: 0.02em;
}

.api-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--stone-gray);
}

.api-footer a {
    color: var(--terracotta);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.api-footer a:hover {
    color: var(--coral);
    text-decoration: underline;
}

/* ── Chart Tabs ── */
.chart-tabs {
    display: flex;
    gap: 4px;
    background: var(--warm-sand);
    padding: 4px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-warm);
    margin-bottom: 1.75rem;
    flex-wrap: wrap;
}

.chart-tab-btn {
    padding: 9px 18px;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.8125rem;
    color: var(--olive-gray);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.25s var(--ease-out);
    display: flex;
    align-items: center;
    gap: 6px;
    position: relative;
}

.chart-tab-btn:hover:not(.active) {
    background: rgba(201, 100, 66, 0.07);
    color: var(--near-black);
}

.chart-tab-btn.active {
    background: var(--pure-white);
    color: var(--near-black);
    box-shadow: var(--whisper), var(--ring-sand);
    font-weight: 600;
}

.chart-tab-btn i {
    font-size: 0.875rem;
    color: var(--terracotta);
}

.chart-tab-btn.active i {
    color: var(--terracotta);
}

.tab-content {
    display: none;
    animation: fadeInTab 0.35s var(--ease-out);
}

.tab-content.active {
    display: block;
}

@keyframes fadeInTab {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Skeleton Loading ── */
.skeleton {
    background: linear-gradient(90deg,
        var(--warm-sand) 0%,
        rgba(201, 100, 66, 0.05) 50%,
        var(--warm-sand) 100%);
    background-size: 200% 100%;
    animation: shimmer 2s ease-in-out infinite;
    border-radius: var(--radius-sm);
}

@keyframes shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.5; }
}

.chart-skeleton {
    height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 8px;
    padding: 20px;
}

.chart-skeleton .skeleton-bar {
    border-radius: 4px 4px 0 0;
}

.skeleton-bars {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    height: 300px;
}

.skeleton-bars .skeleton-bar {
    flex: 1;
    min-width: 20px;
}

/* ── Chart Cards ── */
.charts-scroll-page {
    padding: 0;
}

.chart-section-group {
    margin-bottom: 1rem;
}

.chart-section-heading {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--stone-gray);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin: 0 0 0.625rem;
    padding: 4px 10px;
    background: var(--ivory);
    border: 1px solid var(--border-cream);
    border-radius: 6px;
}

.chart-section-group:first-child .chart-section-heading {
    margin-top: 0;
}

/* ── Gold chart + Market Movement side card ── */
.gold-section-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 1.5rem;
    align-items: start;
}

.gold-section-grid .chart-card {
    margin-bottom: 0;
}

@media (max-width: 1024px) {
    .gold-section-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

.gold-section-grid.gold-full-width {
    grid-template-columns: minmax(0, 1fr);
}

/* ── Market Ticker Strip ── */
.ticker-strip {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.875rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--border-warm) transparent;
    padding-bottom: 6px;
}

.ticker-strip::-webkit-scrollbar {
    height: 4px;
}

.ticker-strip::-webkit-scrollbar-track {
    background: transparent;
}

.ticker-strip::-webkit-scrollbar-thumb {
    background: var(--border-warm);
    border-radius: 4px;
}

.ticker-card-sm {
    flex: 0 0 200px;
    width: 200px;
    background: var(--pure-white);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-xl);
    padding: 0.75rem 1rem 0.625rem;
    box-shadow: var(--whisper);
    display: flex;
    flex-direction: column;
    gap: 2px;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.ticker-card-sm:hover {
    border-color: rgba(201,100,66,0.25);
    box-shadow: var(--shadow-md);
}

.ticker-top {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    margin-bottom: 5px;
}

.ticker-name {
    font-size: 0.75rem;
    color: var(--olive-gray);
    font-weight: 400;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ticker-badge {
    order: -1; /* source tag sits as overline above the name */
    align-self: flex-start;
    font-size: 0.5625rem;
    font-weight: 600;
    color: var(--stone-gray);
    background: var(--warm-sand);
    padding: 1px 6px;
    border-radius: 99px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    white-space: nowrap;
}

.ticker-price-row {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 5px;
    margin-bottom: 1px;
    overflow: hidden;
}

.ticker-price {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--near-black);
    line-height: 1.1;
    font-variant-numeric: tabular-nums;
}

.ticker-unit {
    font-size: 0.6875rem;
    color: var(--stone-gray);
}

.ticker-change {
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: 6px;
    min-height: 16px;
}
.ticker-change.positive { color: #16a34a; }
.ticker-change.negative { color: var(--error-red, #b53333); }
.ticker-change.neutral  { color: var(--stone-gray); }

.ticker-spark {
    width: 100%;
    height: 44px;
    display: block;
    max-height: 44px;
}

.ticker-ts {
    font-size: 0.625rem;
    color: var(--stone-gray);
    margin-top: 4px;
}

@media (max-width: 768px) {
    .ticker-card-sm {
        flex: 0 0 158px;
        width: 158px;
        padding: 0.625rem 0.75rem 0.5rem;
        border-radius: var(--radius-lg);
    }
    .ticker-price {
        font-size: 1.25rem;
    }
    .ticker-spark {
        height: 34px;
        max-height: 34px;
    }
    .ticker-change {
        margin-bottom: 4px;
        min-height: 14px;
    }
    /* per-card timestamp is repeated 7× — drop on mobile to keep cards short */
    .ticker-ts {
        display: none;
    }
}

/* ── Global Markets Ticker Band ── */
.global-ticker-band {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    background: var(--ivory);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-lg);
    padding: 0.625rem 1rem;
    margin-bottom: 0.875rem;
    box-shadow: var(--whisper);
}

.global-ticker-band::-webkit-scrollbar {
    display: none;
}

.global-ticker-item {
    display: flex;
    align-items: baseline;
    gap: 6px;
    flex: 0 0 auto;
    white-space: nowrap;
    font-size: 0.8125rem;
}

.global-ticker-label {
    color: var(--olive-gray);
    font-weight: 500;
}

.global-ticker-value {
    color: var(--near-black);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.global-ticker-change {
    font-size: 0.75rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-variant-numeric: tabular-nums;
}
.global-ticker-change.positive { color: #16a34a; }
.global-ticker-change.negative { color: var(--error-red, #b53333); }
.global-ticker-change.neutral  { color: var(--stone-gray); }

.global-ticker-sep {
    width: 1px;
    height: 16px;
    background: var(--border-cream);
    flex: 0 0 auto;
}

.global-ticker-ts {
    margin-left: auto;
    padding-left: 1rem;
    font-size: 0.6875rem;
    color: var(--stone-gray);
    flex: 0 0 auto;
}

/* Holds the scrolling items; carries the inter-item gap the band used to own,
   so desktop layout is unchanged (band now flexes [track][ts]). */
.global-ticker-track {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

@media (max-width: 768px) {
    .global-ticker-band {
        gap: 0.875rem;
        padding: 0.5rem 0.75rem;
    }
    .global-ticker-track {
        gap: 0.875rem;
    }
    .global-ticker-ts {
        display: none;
    }
    /* Auto-scrolling marquee — only enabled by JS (.is-marquee) when the row
       overflows on a narrow screen. Desktop never gets this class. */
    .global-ticker-band.is-marquee {
        overflow: hidden;
    }
    .global-ticker-band.is-marquee .global-ticker-track {
        width: max-content;
        animation: vdv-ticker-scroll var(--ticker-dur, 22s) linear infinite;
    }
    .global-ticker-band.is-marquee .global-ticker-track:active {
        animation-play-state: paused;
    }
}

@keyframes vdv-ticker-scroll {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
    .global-ticker-band.is-marquee .global-ticker-track { animation: none; }
}

.market-movement-card {
    display: flex;
    flex-direction: column;
}

.market-movement-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 0.25rem 0 1rem;
}

.market-movement-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding-bottom: 0.875rem;
    border-bottom: 1px solid var(--border-cream);
}

.market-movement-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.mm-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--charcoal);
}

.mm-data {
    text-align: right;
}

.mm-value {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--near-black);
    margin-bottom: 0.125rem;
}

.charts-section {
    margin-bottom: 3rem;
}

.chart-card {
    background: var(--pure-white);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-xl);
    padding: 1.25rem;
    margin-bottom: 0.875rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s var(--ease-out);
    box-shadow: var(--whisper);
}

.chart-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(201, 100, 66, 0.25), transparent);
    opacity: 0;
    transition: opacity 0.3s var(--ease-out);
}

.chart-card:hover::after {
    opacity: 1;
}

.chart-card:hover {
    border-color: rgba(201, 100, 66, 0.2);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md), var(--ring-sand);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 0.875rem;
}

.chart-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--near-black);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ── Info icon ── */
.chart-info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: rgba(201, 100, 66, 0.10);
    color: var(--terracotta);
    font-size: 11px;
    font-weight: 700;
    font-style: normal;
    line-height: 1;
    cursor: help;
    flex-shrink: 0;
    position: relative;
    transition: background 0.2s;
    user-select: none;
}

.chart-info-icon:hover {
    background: rgba(201, 100, 66, 0.20);
}

/* Tooltip popup */
#chart-tooltip-popup {
    position: fixed;
    z-index: 9999;
    background: var(--near-black);
    color: var(--warm-silver);
    font-size: 0.775rem;
    font-weight: 400;
    line-height: 1.6;
    padding: 0.55rem 0.8rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--dark-surface);
    width: 240px;
    white-space: normal;
    pointer-events: none;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s, visibility 0.15s;
}

#chart-tooltip-popup.visible {
    opacity: 1;
    visibility: visible;
}

#chart-tooltip-popup::after {
    content: '';
    position: absolute;
    top: 100%;
    left: var(--arrow-left, 50%);
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--near-black);
}

/* ── Chart Filters ── */
.chart-filters {
    display: flex;
    gap: 3px;
    background: var(--warm-sand);
    padding: 3px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-warm);
}

.filter-btn {
    padding: 0.35rem 0.75rem;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--olive-gray);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--ease-out);
}

.filter-btn:hover {
    color: var(--near-black);
    background: rgba(201, 100, 66, 0.07);
}

.filter-btn.active {
    background: var(--pure-white);
    color: var(--near-black);
    box-shadow: var(--whisper), var(--ring-sand);
    font-weight: 600;
}

.type-select {
    appearance: none;
    -webkit-appearance: none;
    padding: 0.375rem 0.75rem !important;
    border-radius: var(--radius-sm) !important;
    border: 1px solid var(--border-warm) !important;
    background: var(--warm-sand) !important;
    color: var(--charcoal) !important;
    font-size: 0.8125rem !important;
    cursor: pointer;
    transition: border-color 0.2s;
}

.type-select:hover {
    border-color: rgba(201, 100, 66, 0.3) !important;
}

.type-select:focus {
    outline: none;
    border-color: var(--focus-blue) !important;
    box-shadow: 0 0 0 3px rgba(56, 152, 236, 0.15);
}

.chart-container {
    position: relative;
    height: 400px;
    margin-top: 0.75rem;
    touch-action: pan-y;
    user-select: none;
}

.chart-container canvas {
    cursor: crosshair;
}

.chart-source {
    display: block;
    text-align: right;
    font-size: 0.7rem;
    color: var(--stone-gray);
    margin-top: 0.4rem;
    padding-right: 0.25rem;
}

.chart-source a {
    color: var(--stone-gray);
    text-decoration: none;
    transition: color 0.2s;
}

.chart-source a:hover {
    color: var(--terracotta);
    text-decoration: underline;
}

.chart-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--stone-gray);
    font-size: 0.8125rem;
}

.chart-error {
    padding: 1.5rem;
    text-align: center;
    color: var(--olive-gray);
    background: rgba(181, 51, 51, 0.05);
    border-radius: var(--radius-md);
    border: 1px solid rgba(181, 51, 51, 0.15);
    font-size: 0.875rem;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-warm);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--ring-warm);
}

* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-warm) transparent;
}

/* ── Notification Overlay ── */
.notification-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(20, 20, 19, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s var(--ease-out);
}

.notification-overlay.active {
    opacity: 1;
    visibility: visible;
}

.notification-card {
    background: var(--pure-white);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-xl);
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    margin: 1rem;
    box-shadow: var(--shadow-lg), var(--ring-sand);
    transform: translateY(20px) scale(0.97);
    transition: transform 0.35s var(--ease-spring);
}

.notification-overlay.active .notification-card {
    transform: translateY(0) scale(1);
}

.notification-icon {
    width: 48px;
    height: 48px;
    background: rgba(201, 100, 66, 0.10);
    border: 1px solid rgba(201, 100, 66, 0.20);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.4rem;
    color: var(--terracotta);
}

.notification-title {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--near-black);
    text-align: center;
    margin-bottom: 0.625rem;
}

.notification-message {
    color: var(--olive-gray);
    text-align: center;
    line-height: 1.65;
    margin-bottom: 1.75rem;
    font-size: 0.9rem;
}

.notification-actions {
    display: flex;
    gap: 0.625rem;
    justify-content: center;
}

.notification-btn {
    flex: 1;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--ease-out);
    border: none;
    min-width: 100px;
}

.notification-btn.primary {
    background: var(--terracotta);
    color: var(--ivory);
    border-radius: var(--radius-md);
}

.notification-btn.primary:hover {
    background: var(--coral);
    box-shadow: var(--shadow-gold);
}

.notification-btn.secondary {
    background: var(--warm-sand);
    border: 1px solid var(--border-warm);
    color: var(--charcoal);
}

.notification-btn.secondary:hover {
    border-color: rgba(201, 100, 66, 0.3);
    color: var(--terracotta);
    box-shadow: var(--ring-sand);
}

/* ── Responsive ── */
@media (max-width: 1200px) {
    .app-container {
        grid-template-columns: 240px 1fr;
    }

    .datasets-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }

    .indicators-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 968px) {
    .app-container {
        grid-template-columns: 1fr;
        grid-template-rows: 56px 1fr;
    }

    .chart-tabs {
        padding: 3px;
        gap: 3px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        flex-wrap: nowrap;
    }

    .chart-tabs::-webkit-scrollbar {
        display: none;
    }

    .chart-tab-btn {
        padding: 8px 12px;
        font-size: 0.75rem;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .chart-tab-btn span {
        display: none;
    }

    .chart-tab-btn i {
        margin: 0;
    }

    .chart-card {
        padding: 1rem;
        border-radius: var(--radius-lg);
    }

    .chart-card:hover {
        transform: none;
        box-shadow: var(--whisper);
    }

    .skeleton-bars {
        gap: 6px;
    }

    .app-topbar {
        padding: 0 1rem;
        height: 56px;
    }

    .app-container {
        grid-template-rows: 56px 1fr;
    }

    .app-brand-name {
        display: none;
    }

    /* Left cluster must shrink so the right cluster (settings/account) stays on-screen */
    .app-topbar-left {
        flex: 1 1 auto;
        min-width: 0;
        gap: 0.625rem;
    }

    /* Mobile workspace nav: pill style, scroll-x */
    .workspace-nav {
        flex: 1 1 auto;
        min-width: 0; /* allow internal scroll instead of pushing right cluster off-screen */
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        mask-image: linear-gradient(to right, transparent 0, black 16px, black calc(100% - 16px), transparent 100%);
        -webkit-mask-image: linear-gradient(to right, transparent 0, black 16px, black calc(100% - 16px), transparent 100%);
        height: auto;
        align-items: center;
        gap: 6px;
    }

    .workspace-nav::-webkit-scrollbar {
        display: none;
    }

    .workspace-tab {
        padding: 6px 14px;
        border-radius: 24px;
        border-bottom: none;
        margin-bottom: 0;
        font-size: 0.8125rem;
        font-weight: 400;
        color: var(--olive-gray);
        background: transparent;
        border: 1px solid var(--border-cream);
        flex-shrink: 0;
        white-space: nowrap;
    }

    .workspace-tab.active {
        background: var(--warm-sand);
        color: var(--near-black);
        font-weight: 500;
        border-color: transparent;
        border-bottom: none;
    }

    .app-topbar-right {
        flex: 0 0 auto; /* never shrink — always visible/tappable */
        gap: 0.125rem;
    }

    .topbar-icon-btn {
        flex-shrink: 0;
        padding: 0.4rem 0.45rem;
    }

    .header-btn {
        padding: 0.4rem 0.625rem;
        font-size: 0.75rem;
    }

    .header-btn span {
        display: none;
    }

    /* ── Mobile topbar tidy-up (desktop untouched — all scoped ≤768px) ── */
    /* Docs lives in the settings menu / footer on mobile; drop the loose icon. */
    .app-topbar-right a.topbar-icon-btn {
        display: none;
    }
    /* "Đăng nhập" is the primary mobile action — keep it visible WITH its label.
       ID specificity overrides the .header-btn/.header-link display:none rules
       further down (which were hiding login entirely on phones). */
    #login-link {
        display: inline-flex;
        align-items: center;
        text-decoration: none;
    }
    #login-link .header-btn.primary {
        display: inline-flex;
        align-items: center;
        padding: 0.4rem 0.85rem;
        font-size: 0.8125rem;
        color: var(--ivory);
        text-decoration: none;
    }
    #login-link .header-btn.primary span {
        display: inline;
        color: var(--ivory);
        text-decoration: none;
    }

    .main-content {
        padding: 1.25rem 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .section-subtitle {
        font-size: 0.875rem;
    }

    .article-title {
        font-size: 1.625rem;
    }

    .article-text {
        font-size: 0.9375rem;
    }

    .datasets-grid,
    .indicators-grid {
        grid-template-columns: 1fr;
        gap: 0.875rem;
    }

    .dataset-card,
    .indicator-card {
        padding: 1.25rem;
    }

    .dataset-card:hover,
    .indicator-card:hover {
        transform: none;
    }

    .article-header,
    .article-body {
        padding: 1.25rem 1rem;
    }

    .article-meta {
        flex-wrap: wrap;
        gap: 0.875rem;
    }

    .api-section {
        padding: 1.25rem;
    }

    .api-endpoint {
        font-size: 0.7rem;
        padding: 0.75rem;
        flex-wrap: wrap;
    }

    .dataset-stats {
        flex-wrap: wrap;
    }
}

@media (max-width: 640px) {
    .header-btn {
        display: none;
    }

    .user-chip {
        padding: 2px 2px 2px 2px;
    }

    .header-link {
        display: none;
    }

    .mobile-only {
        display: block;
    }

    .main-content {
        padding: 1rem 0.75rem;
    }

    .section-header {
        margin-bottom: 0.25rem;
        position: relative;
        overflow: hidden;
    }

    .section-title {
        font-size: 1.375rem;
    }

    .article-title {
        font-size: 1.375rem;
        line-height: 1.3;
    }

    .chart-container {
        height: 300px;
        margin-top: 0.5rem;
        overflow: visible;
    }

    .chart-card {
        padding: 0.875rem;
        margin-bottom: 0.875rem;
        overflow-x: hidden;
        border-radius: var(--radius-md);
    }

    .chart-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.625rem;
        margin-bottom: 0.75rem;
    }

    .chart-title {
        font-size: 1rem;
    }

    .chart-filters {
        width: 100%;
        flex-wrap: wrap;
        padding: 3px;
    }

    .filter-btn {
        font-size: 0.7rem;
        padding: 0.375rem 0.625rem;
    }

    .article-tag {
        font-size: 0.7rem;
        padding: 0.3rem 0.625rem;
    }

    .dataset-top {
        gap: 0.75rem;
    }

    .dataset-icon,
    .indicator-icon {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }

    .dataset-info h3,
    .indicator-title {
        font-size: 1rem;
    }

    .indicator-value {
        font-size: 1.5rem;
    }

    .dataset-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .api-endpoints {
        gap: 0.375rem;
    }

    .api-endpoint {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.375rem;
    }
}

/* ── Beta Badge ── */
.beta-badge {
    display: inline-block;
    margin-left: 6px;
    padding: 2px 7px;
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    color: var(--terracotta);
    background: rgba(201, 100, 66, 0.08);
    border: 1px solid rgba(201, 100, 66, 0.22);
    border-radius: var(--radius-sm);
    vertical-align: middle;
}

/* Pricing cards */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.pricing-card {
    position: relative;
    background: var(--pure-white);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    box-shadow: var(--whisper);
}

.pricing-card.featured {
    border-color: rgba(201, 100, 66, 0.3);
    box-shadow: var(--shadow-md), var(--ring-sand);
}

.pricing-card.featured::after {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--terracotta);
    border-radius: 2px;
}

.pricing-card-name {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--near-black);
    margin-bottom: 0.5rem;
}

.pricing-card-price {
    font-size: 1.875rem;
    font-weight: 600;
    color: var(--terracotta);
    margin-bottom: 1.5rem;
}

.pricing-card-price span {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--stone-gray);
}

.pricing-card-features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
    flex: 1;
}

.pricing-card-features li {
    font-size: 0.875rem;
    color: var(--olive-gray);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-cream);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pricing-card-features li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.75rem;
    color: #2d7a4f;
}

.pricing-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
    border: none;
}

.pricing-btn.primary {
    background: var(--terracotta);
    color: var(--ivory);
    box-shadow: 0px 0px 0px 1px var(--terracotta);
}

.pricing-btn.primary:hover {
    background: var(--coral);
    box-shadow: var(--shadow-gold);
}

.pricing-btn.secondary {
    background: var(--warm-sand);
    color: var(--charcoal);
    border: 1px solid var(--border-warm);
}

.pricing-btn.secondary:hover {
    border-color: rgba(201, 100, 66, 0.3);
    color: var(--terracotta);
    box-shadow: var(--ring-sand);
}

@media (max-width: 1024px) {
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .pricing-grid { grid-template-columns: 1fr; }
}

/* Footer disclaimer */
.footer-disclaimer {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-cream);
    text-align: center;
}

.disclaimer-content {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.disclaimer-content p {
    font-size: 11px;
    color: var(--stone-gray);
    line-height: 1.5;
    margin: 0;
    font-weight: 400;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.disclaimer-content strong {
    color: var(--olive-gray);
    font-weight: 500;
}

.disclaimer-content p:hover {
    opacity: 0.9;
}

/* ── Hero Header (section with video) ── */
.hero-header {
    position: relative;
    overflow: hidden;
    margin: -2.5rem -2.5rem 3rem -2.5rem;
    padding: 1.5rem 3rem;
    background: transparent;
    border-bottom: 1px solid var(--border-cream);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}

@media (max-width: 768px) {
    .hero-header { padding: 3rem 1.5rem; }
}

.hero-video-container {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    overflow: hidden;
    user-select: none;
    pointer-events: none;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0.9;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: transparent;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    margin: 0 auto;
    background: rgba(245, 244, 237, 0.80);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1.5rem 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-cream);
    box-shadow: var(--shadow-md);
}

.hero-content .section-title {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    color: var(--near-black);
    background: none;
    -webkit-background-clip: unset;
    background-clip: unset;
    -webkit-text-fill-color: var(--near-black);
    filter: none;
}

.hero-content .section-subtitle {
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--olive-gray);
    background: transparent;
    padding: 0;
    border: none;
    backdrop-filter: none;
    box-shadow: none;
    display: block;
    max-width: 100%;
    margin: 0 auto;
}

.hero-content .section-subtitle strong {
    color: var(--terracotta);
}

.app-topbar { z-index: 100; }

@media (max-width: 768px) {
    .hero-header {
        margin: -1.25rem -1rem 2rem -1rem;
        padding: 3rem 1.5rem;
    }
    .hero-content { padding: 1.5rem; }
    .hero-content .section-title { font-size: 1.875rem; }
    .hero-content .section-subtitle { font-size: 0.9rem; }
}

/* ── Download Tab ── */
.dl-cat-label {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--stone-gray);
    margin: 0 0 0.5rem;
}

.dl-table {
    width: 100%;
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--pure-white);
}

.dl-row {
    display: grid;
    grid-template-columns: 2fr 2.5fr 1.2fr auto;
    gap: 0.75rem;
    align-items: center;
    padding: 0.6rem 0.9rem;
    font-size: 0.83rem;
    border-bottom: 1px solid var(--border-cream);
}

.dl-row:last-child { border-bottom: none; }

.dl-header {
    background: var(--warm-sand);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--stone-gray);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.dl-row:not(.dl-header):hover { background: rgba(201, 100, 66, 0.03); }

.dl-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 0.3rem 0.75rem;
    border-radius: 6px;
    border: 1px solid rgba(201, 100, 66, 0.3);
    background: transparent;
    color: var(--terracotta);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s, border-color 0.15s;
}

.dl-btn:hover:not(:disabled) {
    background: rgba(201, 100, 66, 0.08);
    border-color: var(--terracotta);
}

.dl-btn:disabled { opacity: 0.4; cursor: not-allowed; }

@media (max-width: 640px) {
    .dl-row { grid-template-columns: 1fr auto; gap: 0.4rem; }
    .dl-row > span:nth-child(2),
    .dl-row > span:nth-child(3) { display: none; }
}

/* ── Info Cards (About, Privacy, Terms) ── */
.info-card {
    background: var(--pure-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-cream);
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--whisper);
}

.info-card-heading {
    color: var(--terracotta);
    font-family: 'Lora', Georgia, serif;
    font-weight: 500;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

/* ── Filter selects ── */
.filter-select {
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-warm);
    background: var(--warm-sand);
    color: var(--charcoal);
    font-size: 0.85rem;
}

/* ── Step circles ── */
.step-circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--terracotta);
    color: var(--ivory);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    margin: 0 auto 0.5rem;
}

/* ── Icon color helpers ── */
.icon-blue { color: #3898ec; margin-right: 6px; }
.icon-gold { color: var(--terracotta); margin-right: 6px; }

/* ═══════════════════════════════════════════════════════════════════
   Knowledge Market — V2 Visual Redesign (DESIGN.md §11)
   ═══════════════════════════════════════════════════════════════════ */

/* ── Section header (§1 — Anthropic Serif headlines) ── */
.km-section-header {
    margin-bottom: 1.5rem;
}
.km-section-title {
    font-family: 'Lora', Georgia, serif;
    font-size: clamp(1.6rem, 3vw, 2.25rem);
    font-weight: 500;
    line-height: 1.15;
    color: var(--near-black);
    margin-bottom: 0.4rem;
}
.km-section-subtitle {
    font-size: 1rem;
    color: var(--olive-gray);
    line-height: 1.5;
    max-width: 640px;
    margin: 0;
}

/* Smaller section title for sub-views (Categories, Trending) */
.km-section-title-sm {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.4rem;
    font-weight: 500;
    line-height: 1.2;
    color: var(--near-black);
    margin: 0 0 0.3rem;
}
.km-section-subtitle-sm {
    font-size: 0.95rem;
    color: var(--olive-gray);
    line-height: 1.5;
    margin: 0 0 1.25rem;
}

/* ── Categories grid (Discover › Categories) ── */
.km-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}
.km-category-card {
    background: var(--warm-sand, #e8e6dc);
    border: none;
    border-radius: 12px;
    padding: 24px 16px;
    text-align: center;
    cursor: pointer;
    box-shadow: 0px 0px 0px 1px var(--border-warm, #e8e6dc);
    transition: transform 180ms ease, box-shadow 180ms ease;
    font-family: inherit;
    color: var(--near-black);
}
.km-category-card:hover {
    transform: translateY(-2px);
    box-shadow: 0px 0px 0px 1px var(--ring-deep, #c2c0b6);
}
.km-category-icon {
    font-size: 2rem;
    line-height: 1;
    margin-bottom: 10px;
}
.km-category-name {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.15rem;
    font-weight: 500;
    margin-bottom: 4px;
}
.km-category-count {
    font-size: 0.8rem;
    color: var(--stone-gray, #87867f);
}

/* Trending badge on top-3 cards */
.km-card--trending { position: relative; }
.km-card--trending::after {
    content: '🔥';
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 1rem;
    line-height: 1;
    background: rgba(255,255,255,0.85);
    border-radius: 999px;
    padding: 4px 8px;
    box-shadow: 0px 0px 0px 1px var(--border-warm, #e8e6dc);
}

/* ── Filter & Sort Bar (§11.3) ── */
.km-filterbar {
    background: var(--ivory);
    box-shadow: 0px 0px 0px 1px var(--border-warm);
    border-radius: var(--radius-lg);
    padding: 12px 16px;
    margin-bottom: 24px;
    position: sticky;
    top: 112px;
    z-index: 20;
}
.km-filterbar-row1 {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 10px;
}
.km-filterbar-search {
    flex: 1;
    position: relative;
    min-width: 0;
}
.km-search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--stone-gray);
    pointer-events: none;
}
.km-search-input {
    width: 100%;
    padding: 8px 12px 8px 34px;
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-sm);
    background: var(--ivory);
    color: var(--near-black);
    font-size: 0.9375rem;
    outline: none;
    transition: border-color 0.15s;
    -webkit-appearance: none;
}
.km-search-input::placeholder { color: var(--stone-gray); }
.km-search-input:focus { border-color: var(--focus-blue); box-shadow: 0 0 0 2px rgba(56,152,236,0.15); }

.km-filterbar-dropdowns {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}
.km-dropdown {
    background: var(--warm-sand);
    border: none;
    border-radius: var(--radius-sm);
    padding: 6px 28px 6px 10px;
    font-size: 0.8125rem;
    color: var(--charcoal);
    cursor: pointer;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2387867f' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    transition: box-shadow 0.15s;
}
.km-dropdown:hover { box-shadow: 0px 0px 0px 1px var(--ring-warm); }
.km-dropdown:focus { box-shadow: 0 0 0 2px rgba(56,152,236,0.2); }

/* Mobile filter toggle — visible only on mobile */
.km-filter-toggle-btn {
    display: none;
    align-items: center;
    gap: 6px;
    background: var(--warm-sand);
    border: none;
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    font-size: 0.8125rem;
    color: var(--charcoal);
    cursor: pointer;
    white-space: nowrap;
    transition: box-shadow 0.15s;
    flex-shrink: 0;
}
.km-filter-toggle-btn:hover { box-shadow: 0px 0px 0px 1px var(--ring-warm); }

/* ── Category chip row (§11.4) ── */
.km-cat-chips {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 2px;
    /* fade only on right edge — left start is always visible */
    -webkit-mask-image: linear-gradient(to right, black calc(100% - 32px), transparent 100%);
    mask-image: linear-gradient(to right, black calc(100% - 32px), transparent 100%);
}
.km-cat-chips::-webkit-scrollbar { display: none; }
.km-cat-chip {
    flex-shrink: 0;
    padding: 7px 16px;
    border-radius: 24px;
    border: 1px solid var(--border-cream);
    background: transparent;
    color: var(--olive-gray);
    font-size: 0.9375rem;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s;
    white-space: nowrap;
}
.km-cat-chip:hover {
    background: var(--warm-sand);
    color: var(--near-black);
    border-color: var(--border-warm);
}
.km-cat-chip.active {
    background: var(--warm-sand);
    color: var(--near-black);
    border-color: var(--near-black);
    font-weight: 500;
}

/* Legacy alias for km-cat-btn (used in other places) */
.km-cat-btn { padding: 7px 16px; border-radius: 24px; border: 1px solid var(--border-cream); background: transparent; color: var(--olive-gray); font-size: 0.9375rem; cursor: pointer; transition: background 0.15s, color 0.15s; white-space: nowrap; }
.km-cat-btn:hover, .km-cat-btn.active { background: var(--warm-sand); color: var(--near-black); border-color: var(--near-black); font-weight: 500; }

/* ── Product Grid (§11.2) ── */
.km-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

/* ── Product Card (§11.1) ── */
.km-card {
    background: var(--ivory);
    border: 1px solid var(--border-cream);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    display: grid;
    grid-template-rows: auto auto 1fr auto auto auto;
    gap: 0;
    transition: transform 0.18s ease-out, box-shadow 0.18s ease-out;
    box-shadow: 0px 0px 0px 1px transparent;
}
.km-card:hover {
    transform: translateY(-2px);
    box-shadow: 0px 0px 0px 1px var(--ring-warm);
}
.km-card:focus-within {
    box-shadow: 0px 0px 0px 2px var(--focus-blue);
    outline: none;
}

/* Tag row: cat chip left, format badge right */
.km-card-tagrow {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.km-card-cat {
    background: var(--warm-sand);
    color: var(--charcoal);
    font-size: 0.75rem;
    padding: 3px 10px;
    border-radius: 24px;
}
.km-card-format {
    background: transparent;
    color: var(--stone-gray);
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-cream);
}

/* Title — Anthropic Serif */
.km-card-title {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.125rem;  /* ~18px = §11 mobile variant; desktop 1.3rem via responsive */
    font-weight: 500;
    line-height: 1.28;
    color: var(--near-black);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Description */
.km-card-desc {
    font-size: 0.875rem;
    color: var(--olive-gray);
    line-height: 1.45;
    margin: 0 0 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

/* Social proof (§11.7) */
.km-card-meta {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 10px;
    font-size: 0.75rem;
    color: var(--stone-gray);
}
.km-card-star { color: var(--coral); }   /* coral accent, NOT gold (§11.7) */
.km-card-rating-num { font-weight: 500; color: var(--stone-gray); }
.km-card-rating-count { color: var(--stone-gray); }
.km-card-downloads { color: var(--stone-gray); }
.km-card-dot { color: var(--stone-gray); margin: 0 2px; }

/* Divider */
.km-card-divider {
    height: 1px;
    background: var(--border-cream);
    margin-bottom: 12px;
}

/* Footer: seller left, price+CTA right */
.km-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-top: auto;
}
.km-card-seller {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    flex: 1;
}
.km-card-seller-name {
    font-size: 0.8125rem;
    color: var(--dark-warm);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
/* VD Official — premium badge (footer only, §11.5) */
.km-vd-official-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: linear-gradient(135deg, #c96442 0%, #d97757 100%);
    border-radius: 6px;
    padding: 3px 8px 3px 4px;
    flex-shrink: 0;
}
.km-vd-logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    background: rgba(255,255,255,0.22);
    border-radius: 4px;
    font-family: 'Lora', Georgia, serif;
    font-size: 0.625rem;
    font-weight: 700;
    color: #faf9f5;
    letter-spacing: 0;
    line-height: 1;
}
.km-vd-official-text {
    font-size: 0.6875rem;
    font-weight: 600;
    color: #faf9f5;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

/* Regular seller avatar circle */
.km-seller-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--warm-sand);
    color: var(--charcoal);
    font-size: 0.625rem;
    font-weight: 600;
    flex-shrink: 0;
    letter-spacing: 0;
}

/* Legacy — keep for any residual references */
.km-vd-official {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--terracotta);
    flex-shrink: 0;
    letter-spacing: 0.01em;
}
.km-card-footer-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
/* Price (§11.6) — USD primary, VND secondary chip */
.km-card-price {
    font-size: 1rem;
    font-weight: 500;
    color: var(--near-black);
}
.km-card-price--free { color: #6b8e4e; }   /* sage green — free tier */
.km-price-free { color: #6b8e4e; }
.km-price-paid { color: var(--near-black); }
.km-price-vnd {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--olive-gray);
    margin-left: 4px;
}
/* Detail page price block */
.km-detail-price-block {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.km-detail-price-usd {
    font-family: 'Lora', 'Georgia', serif;
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--near-black);
    line-height: 1.2;
}
.km-detail-price-vnd {
    font-size: 0.95rem;
    color: var(--olive-gray);
}

/* .km-card-cta removed — whole card is clickable */

/* Library card variant */
.km-card-lib-actions {
    display: flex;
    gap: 6px;
}
.km-card-purchase-date {
    font-size: 0.75rem;
    color: var(--stone-gray);
    margin-bottom: 10px;
}

/* ── Skeleton cards (§11.13) ── */
@keyframes km-shimmer {
    0%   { background-position: -300px 0; }
    100% { background-position: 300px 0; }
}
.km-card-skeleton {
    cursor: default;
    pointer-events: none;
}
.km-card-skeleton:hover {
    transform: none;
    box-shadow: none;
}
.km-skel-block {
    background: linear-gradient(90deg, #ece9dd 25%, rgba(245,244,237,0.7) 50%, #ece9dd 75%);
    background-size: 600px 100%;
    animation: km-shimmer 1.4s linear infinite;
    border-radius: 4px;
    display: block;
}
.km-skel-tagrow {
    display: flex;
    margin-bottom: 10px;
}
.km-skel-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

/* ── Empty states (§11.8) ── */
.km-empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 80px 24px;
    max-width: 480px;
    margin: 0 auto;
}
.km-empty-title {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--near-black);
    margin: 16px 0 12px;
    line-height: 1.25;
}
.km-empty-body {
    font-size: 1rem;
    color: var(--olive-gray);
    line-height: 1.6;
    margin: 0 0 24px;
}
/* Legacy plain empty */
.km-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.km-empty-error { color: var(--error-red); }

/* ── Library header ── */
.km-library-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    gap: 1rem;
    flex-wrap: wrap;
}
.km-library-header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.km-library-title {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--near-black);
    margin: 0;
}
.km-btn-back {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: transparent;
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-sm);
    padding: 5px 10px;
    font-size: 0.8125rem;
    color: var(--olive-gray);
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}
.km-btn-back:hover { color: var(--near-black); border-color: var(--border-warm); }

/* Library filter row */
.km-library-filterrow {
    display: flex;
    gap: 8px;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.km-library-filterrow .km-filterbar-search {
    flex: 1;
    min-width: 160px;
}

/* ── Library group accordion (§11.10) ── */
.km-library-group {
    margin-bottom: 1.5rem;
}
.km-library-group-header {
    display: flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-cream);
    padding: 8px 0;
    cursor: pointer;
    width: 100%;
    text-align: left;
    margin-bottom: 12px;
}
.km-lib-group-chevron {
    font-size: 0.7rem;
    color: var(--stone-gray);
    transition: transform 0.18s;
    display: inline-block;
}
.km-lib-group-name {
    font-family: 'Lora', Georgia, serif;
    font-size: 1rem;
    font-weight: 500;
    color: var(--near-black);
}
.km-lib-group-count {
    font-size: 0.8125rem;
    color: var(--stone-gray);
}
.km-library-group-body {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

/* ── Shared Buttons ── */
.km-label { display:block; font-size:0.8rem; color:var(--text-secondary); margin-bottom:0.35rem; font-weight:500; }
.km-input { width:100%; box-sizing:border-box; padding:0.5rem 0.75rem; border:1px solid var(--border-cream); border-radius:var(--radius-md); background:var(--parchment); color:var(--text-primary); font-size:0.875rem; outline:none; }
.km-input:focus { border-color:var(--terracotta); }
.km-btn-primary { background:var(--terracotta); color:#fff; border:none; border-radius:var(--radius-md); padding:0.55rem 1.5rem; font-size:0.875rem; font-weight:500; cursor:pointer; transition: background 0.15s; }
.km-btn-primary:hover { background: var(--coral); }
.km-btn-primary:disabled { opacity:0.6; cursor:not-allowed; }
.km-btn-sand {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--warm-sand);
    color: var(--charcoal);
    border: none;
    border-radius: var(--radius-md);
    padding: 0.45rem 1rem;
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: box-shadow 0.15s;
}
.km-btn-sand:hover { box-shadow: 0px 0px 0px 1px var(--ring-warm); }
.km-btn-sm { padding: 0.3rem 0.75rem; font-size: 0.75rem; }

/* Legacy secondary button alias */
.km-btn-secondary {
    background: rgba(201,100,66,0.08);
    color: var(--terracotta);
    border: 1px solid rgba(201,100,66,0.25);
    border-radius: var(--radius-md);
    padding: 0.45rem 1rem;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 500;
    transition: background 0.15s;
}
.km-btn-secondary:hover { background: rgba(201,100,66,0.15); }

/* ── Badges (legacy aliases) ── */
.km-fmt-badge  { background: var(--warm-sand); color: var(--charcoal); font-size: 0.68rem; padding: 0.1rem 0.45rem; border-radius: 4px; }
.km-vd-badge   { background: var(--terracotta); color: #fff; font-size: 0.65rem; padding: 0.1rem 0.45rem; border-radius: 4px; }
.km-cat-badge  { background: rgba(201,100,66,0.10); color: var(--terracotta); padding: 0.15rem 0.5rem; border-radius: 4px; font-size: 0.72rem; }
.km-rating     { color: var(--coral); font-size: 0.8rem; }

/* ── Status badges ── */
.km-status-badge { display: inline-block; padding: 0.15rem 0.5rem; border-radius: 4px; font-size: 0.7rem; font-weight: 500; }
.km-status-pending_review { background: rgba(255,167,38,0.15); color: #FFA726; }
.km-status-approved       { background: rgba(102,187,106,0.15); color: #66BB6A; }
.km-status-rejected       { background: rgba(239,83,80,0.15);   color: #EF5350; }
.km-status-archived       { background: rgba(135,134,127,0.15); color: var(--stone-gray); }
.km-status-active         { background: rgba(102,187,106,0.15); color: #66BB6A; }
.km-status-pending        { background: rgba(255,167,38,0.15);  color: #FFA726; }
.km-status-paid           { background: rgba(102,187,106,0.15); color: #66BB6A; }

/* ── Upload product form — redesign ── */
.km-upload-form { padding: 4px; }
.km-form-section { margin-bottom: 1.5rem; }
.km-form-section-title {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--stone-gray);
    margin: 0 0 0.75rem;
}
.km-form-divider {
    border: none;
    border-top: 1px solid var(--border-cream);
    margin: 1.25rem 0;
}
.km-form-row { margin-bottom: 0.85rem; }
.km-form-row--two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.km-form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--near-black);
    margin-bottom: 0.35rem;
}
.km-form-label .km-required { color: var(--terracotta); }
.km-form-input,
.km-form-textarea,
.km-form-select {
    width: 100%;
    box-sizing: border-box;
    padding: 0.55rem 0.7rem;
    font-family: inherit;
    font-size: 0.92rem;
    background: var(--ivory);
    border: 1px solid var(--border-warm);
    border-radius: 6px;
    color: var(--near-black);
}
.km-form-input:focus,
.km-form-textarea:focus,
.km-form-select:focus {
    outline: none;
    border-color: var(--terracotta);
    box-shadow: 0 0 0 3px rgba(201,100,66,0.12);
}
.km-form-textarea { min-height: 88px; resize: vertical; }
.km-form-helper {
    font-size: 0.72rem;
    color: var(--stone-gray);
    margin-top: 0.3rem;
}
.km-form-helper--warn { color: var(--terracotta); }
.km-price-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.km-price-row .km-form-input { max-width: 160px; }
.km-price-vnd-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.7rem;
    background: var(--warm-sand);
    border-radius: 999px;
    font-size: 0.85rem;
    color: var(--olive-gray);
    font-variant-numeric: tabular-nums;
}
.km-form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.88rem;
    color: var(--olive-gray);
    margin-top: 0.5rem;
}
.km-progress-bar--lg {
    height: 8px;
    background: var(--border-cream);
    border-radius: 999px;
    overflow: hidden;
    flex: 1;
}
.km-progress-bar--lg .km-progress-fill {
    height: 100%;
    background: var(--terracotta);
    transition: width 0.3s ease, background-color 0.3s ease;
}
.km-progress-bar--lg.scanning .km-progress-fill {
    background: #6b8e4e;
}
.km-progress-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1rem 0;
}
.km-progress-row .km-progress-label {
    font-size: 0.8rem;
    color: var(--olive-gray);
    min-width: 56px;
    font-variant-numeric: tabular-nums;
}
.km-form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.6rem;
    margin-top: 1rem;
}
.km-modal-upload { max-width: 640px !important; }

@media (max-width: 640px) {
    .km-form-row--two-col { grid-template-columns: 1fr; gap: 0; }
    .km-modal-upload { max-width: 100% !important; }
    .km-price-row .km-form-input { max-width: 100%; }
}

/* ── Modal ── */
.km-modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(20,20,19,0.45);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}
.km-modal-content {
    background: var(--ivory);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    max-width: 720px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
}
.km-modal-close {
    position: absolute;
    top: 1rem; right: 1rem;
    background: transparent;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--stone-gray);
    line-height: 1;
    padding: 0.1rem 0.3rem;
}
.km-modal-close:hover { color: var(--near-black); }

/* ── Preview block ── */
.km-preview-block {
    background: var(--parchment);
    border: 1px solid var(--border-cream);
    border-radius: var(--radius-md);
    padding: 1rem;
    font-size: 0.78rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 240px;
    overflow-y: auto;
    color: var(--charcoal);
}

/* ── Admin panel tabs ── */
.km-admin-tab-btn {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    margin-bottom: -1px;
    transition: color 0.15s, border-color 0.15s;
}
.km-admin-tab-btn:hover { color: var(--terracotta); }
.km-admin-tab-btn.active { color: var(--terracotta); border-bottom-color: var(--terracotta); font-weight: 500; }
.km-admin-action-btn { font-size: 0.73rem; padding: 0.2rem 0.6rem; border: none; border-radius: 4px; cursor: pointer; font-weight: 500; }
.km-action-approve { background: #66BB6A; color: #fff; }
.km-action-reject  { background: #EF5350; color: #fff; }
.km-action-archive { background: var(--stone-gray); color: #fff; }

/* Seller product delete button — icon-only, terracotta/danger tone */
.km-btn-icon-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: 1px solid transparent;
    border-radius: var(--radius-md, 6px);
    background: transparent;
    color: var(--terracotta, #C96442);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.km-btn-icon-danger:hover {
    background: #fee2e2;
    border-color: #fca5a5;
    color: #dc2626;
}

/* ── Mobile bottom-sheet filter (§11.14) ── */
.km-sheet-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(20,20,19,0.40);
    z-index: 200;
}
.km-filter-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--ivory);
    border-radius: 24px 24px 0 0;
    padding: 12px 20px 32px;
    z-index: 201;
    flex-direction: column;
    gap: 0;
    max-height: 85vh;
    overflow-y: auto;
    transform: translateY(100%);
    transition: transform 0.28s var(--ease-out);
    box-shadow: 0 -4px 32px rgba(20,20,19,0.10);
}
.km-filter-sheet.km-sheet-open {
    transform: translateY(0);
}
.km-sheet-handle {
    width: 36px;
    height: 4px;
    background: var(--stone-gray);
    border-radius: 2px;
    margin: 0 auto 16px;
    opacity: 0.4;
}
.km-sheet-title {
    font-family: 'Lora', Georgia, serif;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--near-black);
    margin-bottom: 1.25rem;
}
.km-sheet-group {
    margin-bottom: 1.25rem;
}
.km-sheet-group-label {
    font-size: 0.75rem;
    color: var(--stone-gray);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
    font-weight: 500;
}
.km-sheet-chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.km-sheet-chip {
    padding: 6px 14px;
    border-radius: 24px;
    border: 1px solid var(--border-cream);
    background: transparent;
    color: var(--olive-gray);
    font-size: 0.875rem;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
.km-sheet-chip:hover  { background: var(--warm-sand); color: var(--near-black); }
.km-sheet-chip.active { background: var(--near-black); color: var(--ivory); border-color: var(--near-black); }
.km-sheet-footer {
    display: flex;
    gap: 10px;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-cream);
}
.km-sheet-footer .km-btn-sand { flex: 1; justify-content: center; }
.km-sheet-footer .km-btn-primary { flex: 1.5; justify-content: center; }

/* ── FAB filter button (§11.14) ── */
.km-fab-filter {
    position: fixed;
    bottom: 28px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--terracotta);
    color: #fff;
    border: none;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(201,100,66,0.30);
    transition: background 0.15s, transform 0.15s;
}
.km-fab-filter:hover { background: var(--coral); transform: scale(1.05); }

/* ── Responsive (§11.2 breakpoints) ── */

/* Tablet 640–991px: 2 cols */
@media (max-width: 991px) {
    .km-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .km-library-group-body { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .km-card-title { font-size: 1rem; }
    .km-filterbar { position: static; }
}

/* Mobile <640px: 1 col, bottom-sheet filter, FAB */
@media (max-width: 639px) {
    .km-grid { grid-template-columns: 1fr; gap: 14px; }
    .km-library-group-body { grid-template-columns: 1fr; gap: 12px; }
    .km-filterbar { border-radius: var(--radius-md); padding: 10px 12px; }
    .km-filterbar-dropdowns { display: none; }   /* hidden — use sheet instead */
    .km-filter-toggle-btn { display: inline-flex; }
    .km-cat-chips { padding-left: 4px; }
    .km-empty-state { padding: 48px 16px; }
    .km-empty-title { font-size: 1.375rem; }
    .km-section-title { font-size: 1.5rem; }
    .km-modal-content { padding: 1.25rem; }
    .km-library-filterrow { gap: 6px; }
    .km-library-filterrow .km-filterbar-search { min-width: 0; }
    .section-header { padding-right: 0 !important; }
    .section-header > div[style*="position:absolute"] { position:static !important; margin-top:0.75rem; justify-content:flex-start !important; }
}

/* Desktop ≥1200px: 4 cols */
@media (min-width: 1200px) {
    .km-grid { grid-template-columns: repeat(4, 1fr); }
    .km-library-group-body { grid-template-columns: repeat(4, 1fr); }
    .km-card-title { font-size: 1.1875rem; }
}

/* Laptop 992–1199px: 3 cols */
@media (min-width: 992px) and (max-width: 1199px) {
    .km-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .km-library-group-body { grid-template-columns: repeat(3, 1fr); gap: 16px; }
}

/* ── 1s Pulse Sidebar — Watchlist & Filter Chips ── */

.pulse-watchlist-hint {
    display: block;
    font-size: 0.8125rem;
    color: var(--stone-gray);
    padding: 6px 12px;
    line-height: 1.4;
}

.pulse-watchlist-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s ease;
    gap: 8px;
}

.pulse-watchlist-item:hover {
    background: var(--border-cream);
}

.pulse-watchlist-ticker {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--near-black);
    flex-shrink: 0;
}

.pulse-watchlist-price {
    font-size: 0.75rem;
    color: var(--olive-gray);
    font-variant-numeric: tabular-nums;
    flex: 1;
    text-align: right;
}

.pulse-watchlist-delta {
    font-size: 0.6875rem;
    font-weight: 500;
    min-width: 36px;
    text-align: right;
    flex-shrink: 0;
}

.pulse-watchlist-delta.positive { color: #66BB6A; }
.pulse-watchlist-delta.negative { color: var(--error-red); }

.pulse-watchlist-remove {
    background: none;
    border: none;
    color: var(--stone-gray);
    font-size: 0.75rem;
    cursor: pointer;
    padding: 0 2px;
    line-height: 1;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.pulse-watchlist-item:hover .pulse-watchlist-remove {
    opacity: 1;
}

.pulse-filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 4px 4px 8px;
}

.pulse-filter-chip {
    font-size: 0.75rem;
    font-weight: 400;
    padding: 4px 10px;
    border-radius: 24px;
    border: 1px solid var(--border-cream);
    background: transparent;
    color: var(--olive-gray);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
    white-space: nowrap;
}

.pulse-filter-chip:hover {
    background: var(--warm-sand);
    color: var(--near-black);
    border-color: var(--border-warm);
}

.pulse-filter-chip.active {
    background: var(--near-black);
    color: var(--ivory);
    border-color: var(--near-black);
}

/* ── Global Site Footer ── */

.site-footer {
    background: var(--near-black);
    border-top: 1px solid #30302e;
    color: var(--ivory);
    /* Span full width below sidebar + main layout */
    grid-column: 1 / -1;
    margin-top: var(--space-2xl, 3rem);
}

.site-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem 2rem;
}

.site-footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.site-footer-heading {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12px;
    color: var(--ivory);
    margin-bottom: 1rem;
}

.site-footer-link {
    display: block;
    font-size: 0.875rem;
    font-weight: 400;
    color: #b0aea5;
    text-decoration: none;
    padding: 4px 0;
    transition: color 0.15s ease;
}

.site-footer-link:hover {
    color: var(--ivory);
}

.site-footer-bottom {
    border-top: 1px solid #30302e;
    padding-top: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.site-footer-copy {
    font-size: 0.75rem;
    color: var(--stone-gray);
}

.site-footer-bottom-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.site-footer-lang {
    font-size: 0.75rem;
    color: var(--stone-gray);
    background: none;
    border: 1px solid #30302e;
    border-radius: 6px;
    padding: 3px 10px;
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.site-footer-lang:hover {
    color: var(--ivory);
    border-color: #5e5d59;
}

.site-footer-version {
    font-size: 0.75rem;
    color: var(--stone-gray);
}

/* Footer responsive */
@media (max-width: 1023px) {
    .site-footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    .site-footer-inner {
        padding: 3rem 1.5rem 1.5rem;
    }
}

@media (max-width: 639px) {
    .site-footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .site-footer-inner {
        padding: 3rem 1rem 1.5rem;
    }
    .site-footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 0.75rem;
    }
}

/* ── Knowledge Pack Web Reader ─────────────────────────────────────────────── */
.km-reader-body { font-size: 0.94rem; color: #141413; line-height: 1.7; }
.km-reader-h1 { font-family: Georgia, serif; font-size: 1.5rem; font-weight: 500; margin: 0 0 1rem; color: #141413; }
.km-reader-h2 { font-family: Georgia, serif; font-size: 1.2rem; font-weight: 500; margin: 1.75rem 0 0.6rem; color: #141413; }
.km-reader-h3 { font-family: Georgia, serif; font-size: 1rem; font-weight: 500; margin: 1.25rem 0 0.4rem; color: #3d3d3a; }
.km-reader-p  { margin: 0.5rem 0; }
.km-reader-hr { border: none; border-top: 1px solid #e8e6dc; margin: 1.5rem 0; }
.km-reader-ul { margin: 0.5rem 0 0.5rem 1.25rem; }
.km-reader-ul li { margin-bottom: 0.25rem; }
.km-reader-pre {
    background: #141413;
    color: #faf9f5;
    border-radius: 8px;
    padding: 1rem 1.25rem;
    margin: 0.75rem 0;
    overflow-x: auto;
    font-size: 0.82rem;
    line-height: 1.55;
}
.km-reader-pre code { background: none; color: inherit; padding: 0; }
.km-reader-inline-code {
    background: #f0eee6;
    color: #c96442;
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 0.88em;
}

/* ── Doc Pages ── */

/* Shell: sidebar TOC + main content */
.doc-topbar {
  position: sticky; top: 0; z-index: 40;
  background: var(--ivory); border-bottom: 1px solid var(--border-cream);
  display: flex; align-items: center; gap: 16px;
  padding: 0 24px; height: 52px;
}
.doc-back { font-size:0.875rem; color:var(--stone-gray); text-decoration:none; }
.doc-back:hover { color:var(--near-black); }
.doc-topbar-title { font-size:0.875rem; color:var(--near-black); font-weight:500; }

.doc-shell {
  display: flex; min-height: calc(100vh - 52px);
}

/* Sticky TOC sidebar */
.doc-toc {
  width: 200px; flex-shrink: 0;
}
.doc-toc-inner {
  position: sticky; top: 68px;
  display: flex; flex-direction: column; gap: 2px;
}
.doc-toc-label {
  font-size: 0.6875rem; font-weight:600; text-transform:uppercase;
  letter-spacing: 0.08em; color:var(--stone-gray);
  padding: 0 8px; margin-bottom:8px;
}
.doc-toc-item {
  font-size: 0.8125rem; color:var(--olive-gray);
  text-decoration:none; padding: 5px 8px; border-radius:6px;
  border-left: 2px solid transparent;
  transition: color 0.12s, background 0.12s, border-color 0.12s;
  line-height: 1.4;
}
.doc-toc-item:hover { color:var(--near-black); background:var(--border-cream); }
.doc-toc-item.active {
  color:var(--near-black); font-weight:500;
  border-left-color: var(--terracotta);
  background: var(--warm-sand);
}
.doc-toc-item.sub { padding-left:20px; font-size:0.75rem; }

/* Main content */
.doc-content { flex:1; min-width:0; padding: 48px 56px 80px; box-sizing: border-box; }
.doc-content h1 {
  font-family:'Lora',Georgia,serif; font-size:2rem; font-weight:500;
  color:var(--near-black); margin:0 0 8px; line-height:1.2;
}
.doc-content .doc-lead {
  font-size:1.0625rem; color:var(--olive-gray); margin:0 0 40px; line-height:1.6;
}
.doc-content h2 {
  font-family:'Lora',Georgia,serif; font-size:1.375rem; font-weight:500;
  color:var(--near-black); margin:48px 0 16px; padding-top:8px;
  border-bottom: 1px solid var(--border-cream); padding-bottom:10px;
}
.doc-content h3 {
  font-size:1rem; font-weight:600; color:var(--near-black); margin:24px 0 10px;
}
.doc-content p { font-size:0.9375rem; color:var(--olive-gray); line-height:1.65; margin:0 0 14px; }
.doc-content ul, .doc-content ol {
  font-size:0.9375rem; color:var(--olive-gray); line-height:1.65;
  padding-left:1.5rem; margin:0 0 14px;
}
.doc-content li { margin-bottom:4px; }
.doc-content code {
  font-size:0.8125rem; background:var(--warm-sand);
  padding:1px 5px; border-radius:4px; color:var(--near-black);
}
.doc-content pre {
  background:var(--near-black); border-radius:8px;
  padding:16px 20px; overflow-x:auto; margin:16px 0;
}
.doc-content pre code {
  background:none; color:#e8e6dc; font-size:0.8125rem; padding:0;
}

/* Doc components */
.doc-info {
  background:rgba(66,165,245,0.07); border-left:3px solid #42A5F5;
  padding:12px 16px; border-radius:0 6px 6px 0; margin:16px 0;
  font-size:0.875rem; color:var(--olive-gray); line-height:1.55;
}
.doc-warn {
  background:rgba(201,100,66,0.07); border-left:3px solid var(--terracotta);
  padding:12px 16px; border-radius:0 6px 6px 0; margin:16px 0;
  font-size:0.875rem; color:var(--olive-gray); line-height:1.55;
}
.doc-tip {
  background:rgba(102,187,106,0.08); border-left:3px solid #66BB6A;
  padding:12px 16px; border-radius:0 6px 6px 0; margin:16px 0;
  font-size:0.875rem; color:var(--olive-gray); line-height:1.55;
}
.doc-table { width:100%; border-collapse:collapse; margin:16px 0; font-size:0.875rem; }
.doc-table th {
  background:var(--parchment); color:var(--near-black); font-weight:600;
  padding:8px 12px; text-align:left; border:1px solid var(--border-cream);
}
.doc-table td { padding:8px 12px; border:1px solid var(--border-cream); color:var(--olive-gray); vertical-align:top; }
.doc-table tr:nth-child(even) td { background:var(--parchment); }

.doc-step {
  display:flex; gap:14px; align-items:flex-start; margin:12px 0;
}
.doc-step-num {
  width:26px; height:26px; border-radius:50%; background:var(--terracotta);
  color:#fff; font-size:0.8125rem; font-weight:600; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
}
.doc-step-body { font-size:0.9375rem; color:var(--olive-gray); line-height:1.55; padding-top:2px; }

/* Pack type cards */
.pack-type-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:16px; margin:24px 0; }
.pack-type-card {
  background:var(--ivory); border:1px solid var(--border-cream); border-radius:12px;
  padding:20px; cursor:default;
}
.pack-type-card:hover { box-shadow:0 0 0 1px var(--warm-sand); }
.pack-type-badge {
  display:inline-block; font-size:0.6875rem; font-weight:600; text-transform:uppercase;
  letter-spacing:0.08em; padding:3px 8px; border-radius:24px; margin-bottom:10px;
}
.pack-type-badge.type-knowledge { background:#e8f5e9; color:#2e7d32; }
.pack-type-badge.type-agent { background:#fff3e0; color:#e65100; }
.pack-type-badge.type-dataset { background:#e8eaf6; color:#283593; }
.pack-type-card h4 { font-family:'Lora',Georgia,serif; font-size:1rem; font-weight:500; color:var(--near-black); margin:0 0 6px; }
.pack-type-card p { font-size:0.8125rem; color:var(--olive-gray); line-height:1.5; margin:0 0 10px; }
.pack-type-ext { font-size:0.75rem; color:var(--stone-gray); }

/* Doc checklist */
.doc-checklist { list-style:none; padding-left:0; }
.doc-checklist li { padding:4px 0; font-size:0.9375rem; color:var(--olive-gray); line-height:1.65; }
.doc-checklist li::before { content:"☐ "; color:var(--stone-gray); }

/* TOC scroll spy */
.doc-section { scroll-margin-top:72px; }

/* Responsive */
@media (max-width:768px) {
  .doc-shell { flex-direction:column; }
  .doc-content { padding:24px 16px 60px; }
  .doc-toc { width:100%; }
  .doc-toc-inner { position:static; flex-direction:row; flex-wrap:wrap; gap:4px; }
  .doc-toc-label { display:none; }
  .doc-toc-item { border-left:none; border-bottom:2px solid transparent; padding:4px 10px; border-radius:24px; }
  .doc-toc-item.active { border-bottom-color:var(--terracotta); }
  .doc-content h1 { font-size:1.5rem; }
  .doc-content h2 { font-size:1.125rem; }
}

/* ── Docs Topbar (shared — injected by docs-sidebar.js) ── */
.docs-topbar {
  position: sticky; top: 0; z-index: 40;
  background: var(--ivory); border-bottom: 1px solid var(--border-cream);
  display: flex; align-items: center; gap: 20px;
  padding: 0 24px; height: 52px;
}
.docs-topbar-brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--near-black); flex-shrink: 0;
}
.docs-topbar-logo {
  width: 28px; height: 28px; border-radius: 6px;
  background: linear-gradient(135deg, var(--terracotta), #d97757);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Lora', Georgia, serif; font-size: 0.875rem; font-weight: 600; color: #fff;
  flex-shrink: 0;
}
.docs-topbar-name { font-size: 0.9375rem; font-weight: 500; color: var(--near-black); }
.docs-topbar-sep { color: var(--border-warm); font-size: 1.25rem; margin: 0 4px; line-height: 1; }
.docs-topbar-section { font-size: 0.9375rem; color: var(--olive-gray); }
.docs-topbar-section-link { text-decoration: none; color: var(--olive-gray); }
.docs-topbar-section-link:hover { color: var(--near-black); }
.docs-topbar-search {
  margin-left: auto; display: flex; align-items: center; gap: 8px;
  background: var(--warm-sand); border: 1px solid var(--border-warm); border-radius: 8px;
  padding: 5px 12px; cursor: pointer;
}
.docs-topbar-search span { font-size: 0.8125rem; color: var(--stone-gray); }
.docs-topbar-search kbd { font-size: 0.6875rem; color: var(--stone-gray); background: var(--border-cream); padding: 1px 5px; border-radius: 4px; }

/* ── Docs Sidebar (shared across doc pages — injected by docs-sidebar.js) ── */
.docs-sidebar {
  width: 260px; flex-shrink: 0;
  background: var(--parchment);
  border-right: 1px solid var(--border-cream);
  position: sticky; top: 52px; height: calc(100vh - 52px);
  overflow-y: auto; scrollbar-width: thin; scrollbar-color: var(--border-warm) transparent;
}
.docs-sidebar::-webkit-scrollbar { width: 4px; }
.docs-sidebar::-webkit-scrollbar-thumb { background: var(--border-warm); border-radius: 4px; }

.docs-sidebar-inner { padding: 20px 12px 40px; }

.docs-nav-group { margin-bottom: 24px; }
.docs-nav-group-title {
  font-size: 0.6875rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--stone-gray);
  padding: 0 8px; margin-bottom: 4px;
}
.docs-nav-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px; border-radius: 6px;
  font-size: 0.8125rem; color: var(--olive-gray);
  text-decoration: none; cursor: pointer;
  transition: background 0.12s, color 0.12s;
  line-height: 1.4;
  border-left: 3px solid transparent;
}
.docs-nav-item:hover { background: var(--border-cream); color: var(--near-black); }
.docs-nav-item.active {
  background: var(--warm-sand);
  color: var(--near-black);
  border-left-color: var(--terracotta);
}
.docs-nav-item-icon {
  width: 16px; height: 16px; flex-shrink: 0; color: var(--stone-gray);
}
.docs-nav-item.active .docs-nav-item-icon { color: var(--near-black); }

/* ── Docs Mobile Nav (shared — injected by docs-sidebar.js) ── */
.docs-mobile-nav {
  display: none;
  background: var(--ivory); border-bottom: 1px solid var(--border-cream);
  padding: 8px 16px; gap: 6px; overflow-x: auto; scrollbar-width: none;
}
.docs-mobile-nav::-webkit-scrollbar { display: none; }
.docs-mobile-nav a {
  flex-shrink: 0; padding: 5px 12px; border-radius: 24px;
  font-size: 0.8125rem; color: var(--olive-gray); text-decoration: none;
  border: 1px solid var(--border-cream); white-space: nowrap;
}
.docs-mobile-nav a:hover { background: var(--warm-sand); color: var(--near-black); }

@media (min-width: 769px) and (max-width: 1024px) {
  .docs-sidebar { width: 220px; }
}

/* ── Docs Hamburger + Mobile Dropdown (injected by docs-sidebar.js) ── */
.docs-burger {
  display: none; flex-shrink: 0;
  background: none; border: 1px solid var(--border-warm); border-radius: 8px;
  padding: 6px 8px; cursor: pointer; color: var(--near-black);
  align-items: center; justify-content: center;
}
.docs-burger svg { display: block; }
.docs-mobile-menu {
  display: none; flex-direction: column;
  background: var(--ivory); border-bottom: 1px solid var(--border-cream);
  padding: 8px; gap: 2px;
}
.docs-mobile-menu.open { display: flex; }
.docs-mobile-menu-item {
  padding: 10px 12px; border-radius: 8px;
  font-size: 0.875rem; color: var(--olive-gray); text-decoration: none;
}
.docs-mobile-menu-item:hover { background: var(--warm-sand); color: var(--near-black); }
.docs-mobile-menu-item.active { background: var(--warm-sand); color: var(--near-black); font-weight: 600; }

@media (max-width: 768px) {
  .docs-sidebar { display: none; }
  .docs-topbar { gap: 10px; padding: 0 14px; }
  .docs-burger { display: inline-flex; }
  /* Mobile: chỉ giữ brand + hamburger, ẩn breadcrumb + ô tìm kiếm cho đỡ tràn */
  .docs-topbar-sep, .docs-topbar-section, .docs-topbar-search { display: none; }
  .docs-topbar-actions { margin-left: auto; }
}

/*
TOC scroll-spy (inline in each doc page):
const tocItems = document.querySelectorAll('.doc-toc-item[href^="#"]');
const obs = new IntersectionObserver(entries => {
  entries.forEach(e => { if(e.isIntersecting){ tocItems.forEach(i=>i.classList.toggle('active', i.getAttribute('href')==='#'+e.target.id)); }});
}, { rootMargin:'-10% 0px -80% 0px', threshold:0 });
document.querySelectorAll('.doc-section').forEach(s=>obs.observe(s));
*/

/* ── Open Data — value-prop hero (above ticker strip) ── */
.data-hero {
    padding: 2.25rem 0 1.5rem;
    max-width: 760px;
}
.data-hero-title {
    font-family: 'Lora', Georgia, serif;
    font-size: 2.4rem;
    font-weight: 600;
    line-height: 1.15;
    color: var(--near-black);
    margin: 0 0 0.6rem;
}
.data-hero-sub {
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--olive-gray);
    margin: 0 0 1.25rem;
}
.data-hero-sub strong { color: var(--terracotta); font-weight: 600; }
.data-hero-cta { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.btn-data-primary,
.btn-data-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: background 0.18s ease-out, box-shadow 0.18s ease-out, color 0.18s ease-out;
}
.btn-data-primary {
    background: var(--terracotta);
    color: var(--ivory);
    box-shadow: var(--ring-terracotta);
}
.btn-data-primary:hover {
    background: var(--coral);
    box-shadow: 0 0 0 1px var(--coral);
}
.btn-data-secondary {
    background: var(--warm-sand);
    color: var(--charcoal);
    box-shadow: var(--ring-sand);
}
.btn-data-secondary:hover {
    color: var(--near-black);
    box-shadow: 0 0 0 1px var(--near-black);
}
@media (max-width: 640px) {
    .data-hero { padding: 1.5rem 0 1rem; }
    .data-hero-title { font-size: 1.75rem; }
    .data-hero-sub { font-size: 0.95rem; }
    .btn-data-primary,
    .btn-data-secondary { flex: 1 1 auto; justify-content: center; }
}