/* ==========================================================================
   BRVM Data — identité TonuxCorp (brand kit v1.0), modes clair et sombre
   Navy profond, cyan en accent (< 10 % d'une surface), blanc.
   Space Grotesk (titres, chiffres), Inter (interface), JetBrains Mono (valeurs).
   ========================================================================== */

/* ------------------------------------------------------------------ Tokens */

:root,
:root[data-theme="light"] {
    color-scheme: light;

    --bg: #F4F7FA;
    --surface: #FFFFFF;
    --surface-2: #E8EEF4;
    --border: #DCE3EB;
    --border-2: #C4CFDB;
    --text: #0B1F38;
    --text-2: #4E6178;
    --text-3: #5F7086;

    /* Le cyan pur est illisible sur blanc : texte d'accent assombri, fond d'accent inchangé */
    --accent: #00E5FF;
    --accent-text: #007A8A;
    --on-accent: #060D18;

    --gain: #0F7A55;
    --gain-bg: #E3F4EC;
    --loss: #C4314B;
    --loss-bg: #FBE6EA;
    --chart-fill: rgba(0, 122, 138, 0.08);

    --brand-bracket: #0B1F38;
    --brand-tee: #0B1F38;

    --cta-bg: #0B1F38;
    --cta-text: #FFFFFF;
    --cta-text-2: #B8C7D9;

    --topbar-bg: rgba(244, 247, 250, 0.92);

    /* Market map : texte blanc sur les teintes foncées, navy sur les claires (contraste ≥ 4,5:1) */
    --tile-l5: #8E1F33; --tile-l5-text: #FFFFFF;
    --tile-l3: #C4314B; --tile-l3-text: #FFFFFF;
    --tile-l1: #E58999; --tile-l1-text: #0B1F38;
    --tile-l0: #F6D5DA; --tile-l0-text: #0B1F38;
    --tile-z:  #E2E8EF; --tile-z-text:  #0B1F38;
    --tile-g0: #D3EFE2; --tile-g0-text: #0B1F38;
    --tile-g1: #8FD1B3; --tile-g1-text: #0B1F38;
    --tile-g3: #0F7A55; --tile-g3-text: #FFFFFF;
    --tile-g5: #0A5A3F; --tile-g5-text: #FFFFFF;
}

:root[data-theme="dark"] {
    color-scheme: dark;

    --bg: #060D18;
    --surface: #0B1524;
    --surface-2: #0F2B47;
    --border: #17263B;
    --border-2: #2A3C55;
    --text: #FFFFFF;
    --text-2: #8A9CB2;
    --text-3: #7286A0;

    --accent: #00E5FF;
    --accent-text: #00E5FF;
    --on-accent: #060D18;

    --gain: #3DDC97;
    --gain-bg: #0C2A22;
    --loss: #FF6B7A;
    --loss-bg: #2E1219;
    --chart-fill: rgba(0, 229, 255, 0.10);

    --brand-bracket: #FFFFFF;
    --brand-tee: #00E5FF;

    --cta-bg: #0F2B47;
    --cta-text: #FFFFFF;
    --cta-text-2: #8A9CB2;

    --topbar-bg: rgba(6, 13, 24, 0.92);

    --tile-l5: #C2334A; --tile-l5-text: #FFFFFF;
    --tile-l3: #9A2A3D; --tile-l3-text: #FFFFFF;
    --tile-l1: #6A1F2E; --tile-l1-text: #FFFFFF;
    --tile-l0: #3A1A24; --tile-l0-text: #FFFFFF;
    --tile-z:  #1A2940; --tile-z-text:  #FFFFFF;
    --tile-g0: #12352C; --tile-g0-text: #FFFFFF;
    --tile-g1: #16563F; --tile-g1-text: #FFFFFF;
    --tile-g3: #1A7553; --tile-g3-text: #FFFFFF;
    --tile-g5: #1E8F63; --tile-g5-text: #FFFFFF;
}

/* Sans JavaScript : le réglage du système s'applique quand même */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        color-scheme: dark;
        --bg: #060D18; --surface: #0B1524; --surface-2: #0F2B47; --border: #17263B; --border-2: #2A3C55;
        --text: #FFFFFF; --text-2: #8A9CB2; --text-3: #7286A0;
        --accent-text: #00E5FF; --gain: #3DDC97; --gain-bg: #0C2A22; --loss: #FF6B7A; --loss-bg: #2E1219;
        --brand-bracket: #FFFFFF; --brand-tee: #00E5FF; --cta-bg: #0F2B47; --topbar-bg: rgba(6, 13, 24, 0.92);
    }
}

:root {
    --font-display: 'Space Grotesk', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    /* Rayons du brand kit : champs 8, cartes 12, conteneurs 16, capsules 999 */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;

    --gutter: 80px;
    --maxw: 1440px;
}

/* ------------------------------------------------------------------ Base */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.5;
    font-variant-numeric: tabular-nums;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a { color: var(--accent-text); text-decoration: none; }
a:hover { color: var(--text); }

button { font: inherit; color: inherit; }

:focus-visible { outline: 2px solid var(--accent-text); outline-offset: 2px; border-radius: 6px; }

.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.muted { color: var(--text-2); }

/* ------------------------------------------------------------------ Barre du haut */

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--topbar-bg);
    backdrop-filter: saturate(1.4) blur(12px);
    border-bottom: 1px solid var(--border);
}

.topbar__inner {
    max-width: var(--maxw);
    margin: 0 auto;
    height: 72px;
    padding: 0 var(--gutter);
    display: flex;
    align-items: center;
    gap: 48px;
}

.brand { display: flex; align-items: center; gap: 11px; color: var(--text); }
.brand:hover { color: var(--text); }
.brand__mark { width: 30px; height: 30px; flex: none; fill: none; stroke-width: 9; stroke-linecap: round; stroke-linejoin: round; }
.brand__bracket { stroke: var(--brand-bracket); }
.brand__tee { stroke: var(--brand-tee); stroke-width: 10; stroke-linecap: square; }
.brand__mark--mono { width: 20px; height: 20px; stroke: var(--text-3); }
.brand__name {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.6px;
}
.brand__name span { font-weight: 300; color: var(--text-2); }

.nav { display: flex; gap: 32px; font-size: 14px; }
.nav__link {
    display: flex;
    align-items: center;
    height: 72px;
    color: var(--text-2);
    border-bottom: 2px solid transparent;
}
.nav__link:hover { color: var(--text); }
.nav__link svg { display: none; }
.nav__link[aria-current="page"] { color: var(--text); font-weight: 500; border-bottom-color: var(--accent); }

.session-pill {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 7px;
    height: 32px;
    padding: 0 14px;
    border-radius: 999px;
    background: var(--surface-2);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-2);
    white-space: nowrap;
}
.session-pill__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--text-2); }
.session-pill.is-open { color: var(--accent-text); }
.session-pill.is-open .session-pill__dot { background: var(--accent); }

.theme-toggle {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-2);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text);
    cursor: pointer;
}
.theme-toggle:hover { border-color: var(--accent-text); }
.theme-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.theme-toggle__sun { display: none; }
:root[data-theme="dark"] .theme-toggle__sun { display: block; }
:root[data-theme="dark"] .theme-toggle__moon { display: none; }

/* ------------------------------------------------------------------ Mise en page */

main {
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 56px var(--gutter) 80px;
    flex-grow: 1;
}

.view { display: flex; flex-direction: column; gap: 72px; }
.view[hidden] { display: none; }

.block { display: flex; flex-direction: column; gap: 20px; }
.block__head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }

.grid { display: grid; gap: 16px; }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.section-title, .page-title {
    margin: 0;
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 32px;
    line-height: 1.15;
    letter-spacing: -1px;
}
.page-title { font-size: 56px; font-weight: 400; letter-spacing: -2px; line-height: 1.05; }

.lead { margin: 0; font-size: 14px; line-height: 1.7; color: var(--text-2); }

.eyebrow {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 1.6px;
    text-transform: uppercase;
    color: var(--accent-text);
}
.eyebrow--caps { color: var(--accent-text); }

.link-arrow { font-size: 13px; font-weight: 600; white-space: nowrap; }

/* ------------------------------------------------------------------ Variations */

.change { font-weight: 600; }
.change.is-up { color: var(--gain); }
.change.is-down { color: var(--loss); }
.change.is-flat { color: var(--text-2); }

.pill {
    display: inline-block;
    min-width: 72px;
    text-align: center;
    padding: 4px 10px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 13px;
    background: var(--surface-2);
    color: var(--text-2);
}
.pill.is-up { background: var(--gain-bg); color: var(--gain); }
.pill.is-down { background: var(--loss-bg); color: var(--loss); }

/* ------------------------------------------------------------------ Hero */

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 400px;
    gap: 48px;
    align-items: start;
}

.hero__main { display: flex; flex-direction: column; gap: 16px; min-width: 0; }

.hero__value {
    font-family: var(--font-display);
    font-size: 104px;
    font-weight: 300;
    line-height: 0.95;
    letter-spacing: -4px;
}

.hero__changes { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; font-size: 15px; }
.divider { width: 1px; height: 14px; background: var(--border-2); }

.chart {
    position: relative;
    height: 280px;
    margin-top: 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.chart svg { display: block; width: 100%; height: 100%; overflow: visible; }
.chart__empty {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-align: center;
    color: var(--text-2);
    font-size: 14px;
    padding: 24px;
}
.chart__empty strong { color: var(--text); font-weight: 600; }
.chart__empty code { font-family: var(--font-mono); font-size: 12px; color: var(--accent-text); }
.chart__tooltip {
    position: absolute;
    top: 8px;
    transform: translateX(-50%);
    padding: 6px 10px;
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border-2);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 12px;
    white-space: nowrap;
    pointer-events: none;
}
.chart__tooltip[hidden] { display: none; }

.segmented { display: flex; flex-wrap: wrap; gap: 8px; }
.segmented button {
    height: 36px;
    min-width: 52px;
    padding: 0 16px;
    border-radius: 999px;
    border: 1px solid var(--border-2);
    background: transparent;
    color: var(--text-2);
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
}
.segmented button:hover { border-color: var(--accent-text); color: var(--text); }
.segmented button[aria-selected="true"] { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }

/* Carte séance */

.session-card {
    border-radius: var(--radius-lg);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.session-card__date {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 500;
    letter-spacing: -0.8px;
    line-height: 1.2;
    margin-top: 6px;
}

.kv { margin: 0; display: flex; flex-direction: column; }
.kv__row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}
.kv__row:first-child { padding-top: 0; }
.kv__row:last-child { border-bottom: 0; padding-bottom: 0; }
.kv dt { font-size: 13px; color: var(--text-2); }
.kv dd { margin: 0; font-family: var(--font-mono); font-size: 14px; font-weight: 500; white-space: nowrap; }

.breadth { display: flex; flex-direction: column; gap: 10px; }
.breadth__title { font-size: 13px; font-weight: 600; }
.breadth__bar { display: flex; gap: 3px; height: 8px; border-radius: 999px; overflow: hidden; background: var(--surface-2); }
.breadth__bar span { min-width: 3px; }
.breadth__legend { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-2); }
.breadth__legend b { font-weight: 700; }

/* ------------------------------------------------------------------ Carte du marché */

.block__head--wrap { align-items: flex-end; flex-wrap: wrap; }
.block__head--wrap .lead { margin-top: 8px; }

.treemap {
    position: relative;
    height: 520px;
    overflow: hidden;
    background: var(--bg);
}
.treemap__sector { position: absolute; background: var(--surface); border-radius: 6px; }
.treemap__sector-label {
    height: 24px;
    padding: 0 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.treemap__sector-label span { font-family: var(--font-mono); color: var(--text-3); font-weight: 400; }

.treemap__tile {
    position: absolute;
    border: 0;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    overflow: hidden;
    cursor: pointer;
    transition: filter 0.12s;
}
.treemap__tile:hover { filter: brightness(1.12); }
.treemap__tile:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; z-index: 1; }
.treemap__sym { font-family: var(--font-display); font-size: 12px; font-weight: 600; }
.treemap__sym--big { font-size: 22px; font-weight: 500; letter-spacing: -0.5px; }
.treemap__chg { font-size: 11px; font-weight: 500; opacity: 0.9; }

.treemap__tooltip {
    position: absolute;
    z-index: 2;
    width: 260px;
    padding: 14px 16px;
    background: var(--surface);
    border: 1px solid var(--border-2);
    border-radius: var(--radius);
    font-size: 13px;
    pointer-events: none;
}
.treemap__tooltip[hidden] { display: none; }
.treemap__tooltip b:first-child { font-family: var(--font-display); }
.treemap__tooltip-name { margin: 2px 0 10px; color: var(--text-2); }
.treemap__tooltip-grid { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; }
.treemap__tooltip-grid span { color: var(--text-2); }
.treemap__tooltip-grid b { text-align: right; font-family: var(--font-mono); font-weight: 500; }

.treemap-legend {
    display: flex;
    align-items: center;
    gap: 3px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
}
.treemap-legend i { width: 26px; height: 8px; border-radius: 2px; }
.treemap-legend span:first-child { margin-right: 6px; }
.treemap-legend span:last-child { margin-left: 6px; }

/* ------------------------------------------------------------------ Cartes indices */

.index-card { padding: 22px; display: flex; flex-direction: column; gap: 10px; }
.index-card__name { font-size: 10px; font-weight: 600; letter-spacing: 1.4px; text-transform: uppercase; color: var(--text-3); }
.index-card__value { font-family: var(--font-display); font-size: 38px; font-weight: 300; line-height: 1; }
.index-card__foot { display: flex; justify-content: space-between; gap: 8px; font-size: 12px; }

/* ------------------------------------------------------------------ Listes mouvements */

.list-card { padding: 6px 22px 10px; }
.list-card__title { margin: 0; padding: 16px 0 12px; font-size: 14px; font-weight: 600; }

.mover {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-top: 1px solid var(--border);
}
.mover__badge {
    flex-shrink: 0;
    width: 40px; height: 40px;
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-display);
    font-size: 10px; font-weight: 600;
    background: var(--surface-2); color: var(--text-2);
}
.mover__badge.is-up { background: var(--gain-bg); color: var(--gain); }
.mover__badge.is-down { background: var(--loss-bg); color: var(--loss); }
.mover__id { flex-grow: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.mover__id b { font-family: var(--font-display); font-size: 14px; font-weight: 600; }
.mover__id span, .mover__nums span { font-size: 12px; color: var(--text-2); }
.mover__id span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mover__nums { flex-shrink: 0; display: flex; flex-direction: column; align-items: flex-end; gap: 2px; white-space: nowrap; }
.mover__nums b { font-family: var(--font-mono); font-size: 13px; font-weight: 500; }
.mover__nums .change { font-size: 12px; }
.list-note { padding: 14px 0 6px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-2); }

/* ------------------------------------------------------------------ Secteurs */

.split { display: grid; grid-template-columns: 400px minmax(0, 1fr); gap: 48px; align-items: start; }
.split__intro { display: flex; flex-direction: column; gap: 12px; }

.sectors { padding: 8px 28px; }
.sector {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr) 80px;
    gap: 20px;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.sector:last-child { border-bottom: 0; }
.sector__name { font-weight: 500; }
.sector__track { position: relative; height: 6px; background: var(--surface-2); border-radius: 999px; }
.sector__track::after { content: ''; position: absolute; left: 50%; top: -4px; bottom: -4px; width: 1px; background: var(--border-2); }
.sector__bar { position: absolute; top: 0; height: 6px; border-radius: 999px; }
.sector__bar.is-up { left: 50%; background: var(--gain); }
.sector__bar.is-down { right: 50%; background: var(--loss); }
.sector .change { text-align: right; font-size: 13px; }

/* ------------------------------------------------------------------ Tableaux */

.table-card { padding: 4px 28px; overflow-x: auto; }

.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
    padding: 16px 12px;
    text-align: left;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    white-space: nowrap;
}
.table td {
    padding: 14px 12px;
    border-top: 1px solid var(--border);
    vertical-align: middle;
}
.table th:first-child, .table td:first-child { padding-left: 0; }
.table th:last-child, .table td:last-child { padding-right: 0; }
.table .num { text-align: right; white-space: nowrap; font-family: var(--font-mono); font-size: 13px; color: var(--text-2); }
.table .num.strong { color: var(--text); font-weight: 500; }
.table .num .pill, .table .num .change { font-family: var(--font-body); }
.table .strong { font-weight: 600; }
.table .sym { font-family: var(--font-display); font-weight: 600; }
.table .sub { display: block; font-size: 12px; color: var(--text-2); }
.table tbody tr:hover td { background: var(--bg); }

.table--sortable th button {
    border: 0;
    background: none;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    text-transform: inherit;
    cursor: pointer;
}
.table--sortable th button:hover { color: var(--text); }
.table--sortable th[aria-sort] button { color: var(--accent-text); }
.table--sortable th[aria-sort="ascending"] button::after { content: ' ↑'; }
.table--sortable th[aria-sort="descending"] button::after { content: ' ↓'; }

.table .show-sm-only { display: none; }

.empty { margin: 0; padding: 56px 0; text-align: center; color: var(--text-2); }

/* ------------------------------------------------------------------ Pages liste */

.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.page-head .lead { margin-top: 10px; }

.view[data-view="stocks"], .view[data-view="bonds"], .view[data-view="indices"] { gap: 28px; }

.search {
    width: 360px;
    max-width: 100%;
    height: 44px;
    padding: 0 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}
.search:focus-within { border-color: var(--accent-text); }
.search svg { width: 16px; height: 16px; flex-shrink: 0; fill: none; stroke: var(--text-3); stroke-width: 2; stroke-linecap: round; }
.search input { flex-grow: 1; min-width: 0; border: 0; outline: none; background: transparent; font: inherit; font-size: 14px; color: var(--text); }
.search input::placeholder { color: var(--text-3); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
    height: 40px;
    padding: 0 16px;
    border-radius: 999px;
    border: 1px solid var(--border-2);
    background: transparent;
    color: var(--text-2);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
}
.chip:hover { border-color: var(--accent-text); color: var(--text); }
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.chip__count { opacity: 0.7; margin-left: 4px; font-family: var(--font-mono); font-weight: 500; }

/* ------------------------------------------------------------------ Appel à l'action */

.cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    background: var(--cta-bg);
    color: var(--cta-text);
    border-radius: var(--radius-lg);
    padding: 40px 48px;
}
.cta__title { margin: 0 0 8px; font-family: var(--font-display); font-weight: 500; font-size: 32px; letter-spacing: -1px; line-height: 1.15; }
.cta__text { margin: 0; font-size: 14px; line-height: 1.7; color: var(--cta-text-2); }

.button {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    height: 44px;
    padding: 0 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
}
.button--light { background: var(--accent); color: var(--on-accent); }
.button--light:hover { background: #5CEEFF; color: var(--on-accent); }

/* ------------------------------------------------------------------ Divers */

.skeleton {
    display: block;
    height: 14px;
    border-radius: 6px;
    background: linear-gradient(90deg, var(--surface-2), var(--surface), var(--surface-2));
    background-size: 200% 100%;
    animation: shimmer 1.4s infinite;
}
@keyframes shimmer { to { background-position: -200% 0; } }

.error-banner {
    margin-top: 32px;
    padding: 16px 20px;
    border-radius: var(--radius);
    background: var(--loss-bg);
    color: var(--loss);
    font-weight: 500;
}

.footer {
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 28px var(--gutter);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px 32px;
    flex-wrap: wrap;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-3);
}
.footer__brand { display: flex; align-items: center; gap: 10px; }
.footer a { color: var(--text-2); font-weight: 600; white-space: nowrap; }
.footer a:hover { color: var(--text); }

/* ------------------------------------------------------------------ Responsive */

@media (max-width: 1200px) {
    :root { --gutter: 40px; }
    .hero { grid-template-columns: minmax(0, 1fr); }
    .split { grid-template-columns: minmax(0, 1fr); gap: 20px; }
    .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid--3 { grid-template-columns: minmax(0, 1fr); }
    .hide-md { display: none; }
    .topbar__inner { gap: 28px; }
}

@media (max-width: 820px) {
    :root { --gutter: 20px; }

    body { padding-bottom: 80px; }

    /* backdrop-filter ferait de .topbar le repère de la barre d'onglets fixe */
    .topbar { backdrop-filter: none; background: var(--bg); }
    .topbar__inner { height: 60px; gap: 12px; }
    .brand__mark { width: 26px; height: 26px; }
    .brand__name { font-size: 18px; }
    .session-pill { font-size: 11px; padding: 0 10px; }
    .theme-toggle { width: 44px; height: 44px; }

    .nav {
        position: fixed;
        left: 0; right: 0; bottom: 0;
        z-index: 20;
        height: 80px;
        padding: 8px 12px 22px;
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 0;
        background: var(--surface);
        border-top: 1px solid var(--border);
        font-size: 11px;
        font-weight: 600;
    }
    .nav__link {
        height: auto;
        flex-direction: column;
        justify-content: center;
        gap: 4px;
        border-bottom: 0;
    }
    .nav__link svg {
        display: block;
        width: 22px; height: 22px;
        fill: none; stroke: currentColor; stroke-width: 2;
        stroke-linecap: round; stroke-linejoin: round;
    }
    .nav__link[aria-current="page"] { color: var(--accent-text); font-weight: 600; }

    main { padding-top: 24px; }
    .view { gap: 48px; }

    .hero__value { font-size: 64px; letter-spacing: -2.5px; }
    .hero__changes { font-size: 13px; }
    .hero__changes .divider { display: none; }
    .chart { height: 200px; margin-top: 4px; }
    .segmented { justify-content: space-between; gap: 4px; }
    .segmented button { min-width: 0; flex: 1; padding: 0 6px; height: 44px; }

    .session-card { padding: 22px; }
    .section-title { font-size: 24px; letter-spacing: -0.6px; }
    .page-title { font-size: 40px; letter-spacing: -1.4px; }
    .index-card { padding: 14px; }
    .index-card__value { font-size: 28px; }
    .index-card__foot { flex-direction: column; gap: 2px; }

    .treemap { height: 480px; }
    .treemap-legend i { width: 16px; }

    .sectors { padding: 4px 18px; }
    .sector { grid-template-columns: minmax(0, 1fr) 72px; gap: 8px 12px; }
    .sector__track { grid-column: 1 / -1; grid-row: 2; }

    .table-card { padding: 4px 18px; }
    .hide-sm { display: none; }
    .table .show-sm-only { display: block; }
    .search { width: 100%; }

    .cta { flex-direction: column; align-items: flex-start; padding: 28px 22px; }
    .cta__title { font-size: 24px; }

    .footer { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 420px) {
    .session-pill { display: none; }
    .theme-toggle { margin-left: auto; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .skeleton { animation: none; }
    .treemap__tile { transition: none; }
}