/* ==========================================================================
   Renaud Meynadier — Portfolio (version statique de production)
   style.css — fichier unique, autonome : design tokens + mise en page.
   Aucune dépendance : HTML / CSS / JS pur.
   ========================================================================== */

/* ---- Tokens : couleurs, type, espacements (thème sombre par défaut) ----- */
:root {
    /* Ink — navy désaturé profond */
    --ink-950: #060a12; --ink-900: #090e1a; --ink-850: #0d1424;
    --ink-800: #111a2e; --ink-750: #17223a; --ink-700: #1d2942; --ink-600: #283651;

    /* Bleu de marque */
    --blue-300: #93bbfd; --blue-400: #5b9dfb; --blue-500: #3b82f6;
    --blue-600: #2563eb; --blue-700: #1d4ed8;
    --blue-tint: rgba(59, 130, 246, 0.10);

    /* Statuts projets (sobres) */
    --status-prod-fg: #34d399;      --status-prod-bg: rgba(16, 185, 129, 0.13);
    --status-portfolio-fg: #818cf8; --status-portfolio-bg: rgba(99, 102, 241, 0.14);
    --status-tech-fg: #a78bfa;      --status-tech-bg: rgba(139, 92, 246, 0.14);
    --status-concept-fg: #fb923c;   --status-concept-bg: rgba(249, 115, 22, 0.14);

    /* Familles de polices */
    --font-sans: 'Manrope', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
    --font-heading: 'Syne', 'Manrope', sans-serif;

    /* Rayons */
    --radius-xs: 6px; --radius-sm: 10px; --radius-md: 14px; --radius-lg: 20px; --radius-full: 9999px;

    /* Élévation (calme, sans glow bleu) */
    --shadow-sm: 0 1px 2px rgba(2, 6, 16, 0.40);
    --shadow-md: 0 8px 24px -8px rgba(2, 6, 16, 0.55);
    --shadow-lg: 0 24px 60px -20px rgba(2, 6, 16, 0.70);
    --shadow-ring: inset 0 1px 0 rgba(255, 255, 255, 0.04);

    --container: 1200px;
    --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Accent — orange brûlé (direction finalisée) */
    --bg-page: var(--ink-900); --bg-band: var(--ink-850); --bg-surface: var(--ink-800);
    --bg-surface-hover: var(--ink-750); --bg-inset: var(--ink-700); --bg-footer: var(--ink-950);
    --fg-1: #f5f8fc; --fg-2: #aab4c5; --fg-3: #6b7689;
    --accent: #e0683c; --accent-hover: #c9542c; --accent-fg: #ffffff;
    --accent-soft: rgba(224, 104, 60, 0.12); --on-accent-quiet: rgba(255, 255, 255, 0.16);
    --line: rgba(148, 163, 184, 0.12); --line-strong: rgba(148, 163, 184, 0.20);
}

/* ---- Thème clair -------------------------------------------------------- */
body.light-theme {
    --bg-page: #f6f8fc; --bg-band: #eef2f9; --bg-surface: #ffffff;
    --bg-surface-hover: #f1f5fb; --bg-inset: #eef2f8; --bg-footer: #eaeef5;
    --fg-1: #0c1322; --fg-2: #45516a; --fg-3: #6b7689;
    --accent: #c9542c; --accent-hover: #a8431f; --accent-soft: rgba(224, 104, 60, 0.10);
    --line: rgba(15, 23, 42, 0.10); --line-strong: rgba(15, 23, 42, 0.16);
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 10px 30px -12px rgba(15, 23, 42, 0.18);
    --shadow-lg: 0 28px 60px -24px rgba(15, 23, 42, 0.22);
    --shadow-ring: inset 0 1px 0 rgba(255, 255, 255, 0.9);
    --status-prod-fg: #059669;      --status-prod-bg: rgba(5, 150, 105, 0.10);
    --status-portfolio-fg: #4f46e5; --status-portfolio-bg: rgba(79, 70, 229, 0.10);
    --status-tech-fg: #7c3aed;      --status-tech-bg: rgba(124, 58, 237, 0.10);
    --status-concept-fg: #ea580c;   --status-concept-bg: rgba(234, 88, 12, 0.10);
}

/* ---- Base --------------------------------------------------------------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    background: var(--bg-page); color: var(--fg-1); font-family: var(--font-sans);
    line-height: 1.6; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden; transition: background-color 0.3s ease, color 0.3s ease;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
::selection { background: var(--accent); color: #fff; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ---- Skip to content ---------------------------------------------------- */
.skip-link { position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.skip-link:focus {
    position: fixed; left: 16px; top: 16px; z-index: 9999;
    width: auto; height: auto; overflow: visible;
    padding: 10px 20px; font-size: 0.9rem; font-weight: 600;
    background: var(--accent); color: var(--accent-fg);
    border-radius: var(--radius-sm); outline: none; box-shadow: var(--shadow-md);
}

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* ---- Eyebrow ------------------------------------------------------------ */
.eyebrow {
    font-family: var(--font-mono); font-weight: 600; font-size: 0.78rem;
    letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent);
    display: inline-flex; align-items: center; gap: 12px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--accent); opacity: 0.6; }
.eyebrow.center::before { display: none; }
.eyebrow--bare::before { display: none; }

/* ---- Sections ----------------------------------------------------------- */
section { position: relative; }
.section { padding: clamp(44px, 6vw, 80px) 0; }
.section--band { background: var(--bg-band); border-block: 1px solid var(--line); }
.section-head { max-width: 640px; margin-bottom: 40px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head .eyebrow { margin-bottom: 18px; }
.section-head h2 {
    font-family: var(--font-heading); font-weight: 800; font-size: clamp(1.7rem, 2.8vw, 2.3rem);
    line-height: 1.12; letter-spacing: -0.025em; color: var(--fg-1); margin-bottom: 16px;
}
.section-head p { font-size: 1.0625rem; line-height: 1.65; color: var(--fg-2); }

/* ---- Boutons ------------------------------------------------------------ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 9px;
    font-weight: 600; font-size: 0.95rem; padding: 12px 22px;
    border-radius: var(--radius-sm); border: 1px solid transparent;
    transition: var(--transition); white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn-primary { background: var(--accent); color: var(--accent-fg); }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-secondary { background: var(--bg-surface); border-color: var(--line-strong); color: var(--fg-1); }
.btn-secondary:hover { border-color: var(--accent); background: var(--bg-surface-hover); transform: translateY(-2px); }
.btn-outline { background: transparent; border-color: var(--line-strong); color: var(--fg-1); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 8px 15px; font-size: 0.85rem; }
.btn-block { width: 100%; }
.copied { color: var(--status-prod-fg) !important; border-color: var(--status-prod-fg) !important; }

/* ---- Header ------------------------------------------------------------- */
.header {
    position: fixed; inset: 0 0 auto 0; z-index: 100;
    background: color-mix(in srgb, var(--bg-page) 78%, transparent);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent; transition: border-color 0.3s ease, background 0.3s ease;
}
.header.scrolled { border-bottom-color: var(--line); }
.header-inner {
    max-width: var(--container); margin: 0 auto; padding: 16px 32px;
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.logo { display: inline-flex; align-items: center; gap: 11px; font-weight: 700; font-size: 1.1rem; color: var(--fg-1); letter-spacing: -0.01em; white-space: nowrap; }
.logo .br { font-family: var(--font-mono); color: var(--accent); font-weight: 600; }
.nav { display: flex; gap: 6px; }
.nav a { font-size: 0.92rem; font-weight: 500; color: var(--fg-2); padding: 8px 14px; border-radius: var(--radius-xs); transition: color var(--transition); position: relative; }
.nav a::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 1.5px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 0.25s ease; }
.nav a:hover { color: var(--fg-1); }
.nav a:hover::after { transform: scaleX(1); }
.nav a.active { color: var(--accent); }
.nav a.active::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.icon-btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: var(--radius-sm);
    background: transparent; border: 1px solid var(--line-strong); color: var(--fg-2); transition: var(--transition);
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.icon-btn svg { width: 19px; height: 19px; }

/* ---- Nav toggle (hamburger) -------------------------------------------- */
.nav-toggle {
    display: none; flex-direction: column; justify-content: center; gap: 5px;
    width: 40px; height: 40px; flex-shrink: 0;
    background: transparent; border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm); padding: 11px 8px;
    cursor: pointer; transition: var(--transition);
}
.nav-toggle:hover { border-color: var(--accent); background: var(--accent-soft); }
.nav-toggle span {
    display: block; height: 1.5px; background: var(--fg-2);
    transition: transform 0.25s ease, opacity 0.25s ease, background 0.2s ease;
    transform-origin: center;
}
.nav-toggle:hover span { background: var(--accent); }
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---- Hero --------------------------------------------------------------- */
.hero { padding-top: 184px; padding-bottom: 80px; position: relative; }
.hero::before {
    content: ""; position: absolute; top: -10%; right: 0; width: 55%; height: 80%;
    background: radial-gradient(circle at 70% 30%, var(--accent-soft) 0%, transparent 62%);
    pointer-events: none; opacity: 0.7; z-index: 0;
}
.hero-inner {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.75fr);
    align-items: center; gap: clamp(48px, 7vw, 96px);
}
.hero-main { min-width: 0; }
.hero .eyebrow { margin-bottom: 26px; }
.hero h1 {
    font-family: var(--font-heading); font-weight: 800; font-size: clamp(2.6rem, 5.4vw, 4.3rem);
    line-height: 1.03; letter-spacing: -0.035em; color: var(--fg-1); margin-bottom: 14px; text-wrap: balance;
}
.hero h1 .accent { color: var(--accent); }
.hero-stack {
    display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
    font-family: var(--font-mono); font-weight: 500; font-size: clamp(0.92rem, 1.4vw, 1.08rem);
    color: var(--fg-2); margin-bottom: 26px; letter-spacing: 0.01em;
}
.hero-stack .sep { color: var(--accent); opacity: 0.65; }
.hero-sub { font-size: clamp(1.0625rem, 1.6vw, 1.28rem); line-height: 1.6; color: var(--fg-2); max-width: 640px; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-focus {
    position: relative; padding: 8px 0 8px 30px;
    border-left: 1px solid var(--line-strong);
}
.hero-focus::before {
    content: ""; position: absolute; left: -1px; top: 0;
    width: 1px; height: 64px; background: var(--accent);
}
.hero-focus-label {
    display: block; margin-bottom: 22px;
    font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600;
    letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent);
}
.hero-focus ul { display: grid; gap: 16px; }
.hero-focus li {
    display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 10px;
    align-items: baseline; color: var(--fg-1); font-size: 0.98rem; font-weight: 600;
}
.hero-focus li span {
    font-family: var(--font-mono); font-size: 0.68rem; font-weight: 500;
    color: var(--fg-3);
}
.hero-focus p {
    margin-top: 24px; max-width: 330px;
    color: var(--fg-2); font-size: 0.9rem; line-height: 1.65;
}

/* ---- CV split-button ---------------------------------------------------- */
.cv-action { position: relative; display: inline-flex; align-items: stretch; border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); }
.cv-action:hover { box-shadow: var(--shadow-md); }
.cv-action .btn-primary { transform: none !important; box-shadow: none; }
.cv-action > .btn-primary:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); padding-right: 18px; }
.cv-toggle { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 12px 12px; border-left: 1px solid var(--on-accent-quiet); margin-left: -1px; align-self: stretch; display: inline-flex; align-items: center; }
.cv-toggle svg { transition: transform 0.2s ease; }
.cv-action.open .cv-toggle svg { transform: rotate(180deg); }
.cv-menu {
    position: absolute; top: calc(100% + 10px); left: 0; min-width: 280px; z-index: 30;
    background: var(--bg-surface); border: 1px solid var(--line-strong); border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg); padding: 8px; opacity: 0; visibility: hidden; transform: translateY(-6px); transition: var(--transition);
}
.cv-action.open .cv-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.cv-menu-row { padding: 8px; border-radius: var(--radius-sm); }
.cv-menu-row + .cv-menu-row { margin-top: 2px; border-top: 1px solid var(--line); }
.cv-menu-label { display: block; font-weight: 600; font-size: 0.9rem; color: var(--fg-1); margin-bottom: 8px; }
.cv-menu-actions { display: flex; gap: 8px; }
.cv-menu-actions a {
    display: inline-flex; align-items: center; gap: 6px; flex: 1; justify-content: center;
    font-size: 0.82rem; font-weight: 500; color: var(--fg-2);
    padding: 8px 10px; border-radius: var(--radius-xs); border: 1px solid var(--line); background: var(--bg-inset); transition: var(--transition);
}
.cv-menu-actions a:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.cv-menu-actions a svg { flex: none; width: 15px; height: 15px; }

/* ---- Projets ------------------------------------------------------------ */
.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.pcard {
    display: flex; flex-direction: column; background: var(--bg-surface);
    border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow-sm), var(--shadow-ring); transition: var(--transition);
}
.pcard:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: var(--shadow-lg), var(--shadow-ring); }
.pcard-thumb { aspect-ratio: 16 / 8; background-size: cover; background-position: center top; border-bottom: 1px solid var(--line); position: relative; }
.pcard-thumb::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(9,14,26,0) 50%, rgba(9,14,26,0.45) 100%); }
.light-theme .pcard-thumb::after { background: linear-gradient(180deg, rgba(15,23,42,0) 55%, rgba(15,23,42,0.10) 100%); }
.pcard-body { padding: 26px; display: flex; flex-direction: column; flex: 1; }
.pcard-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.pcard-tagline { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.02em; color: var(--fg-3); margin-bottom: 12px; line-height: 1.4; }
.status { display: inline-flex; font-family: var(--font-mono); font-weight: 600; font-size: 0.66rem; letter-spacing: 0.06em; text-transform: uppercase; padding: 4px 9px; border-radius: var(--radius-xs); }
.status.prod { background: var(--status-prod-bg); color: var(--status-prod-fg); }
.status.portfolio { background: var(--status-portfolio-bg); color: var(--status-portfolio-fg); }
.status.tech { background: var(--status-tech-bg); color: var(--status-tech-fg); }
.status.concept { background: var(--status-concept-bg); color: var(--status-concept-fg); }
.status.done { background: var(--status-prod-bg); color: var(--status-prod-fg); }
.pcard h3 { font-family: var(--font-heading); font-size: 1.35rem; font-weight: 700; letter-spacing: -0.015em; margin-bottom: 10px; }
.pcard-fields { display: grid; gap: 0; margin-bottom: 20px; }
.pfield { display: grid; grid-template-columns: 92px 1fr; gap: 12px; padding: 11px 0; border-top: 1px solid var(--line); }
.pfield .k { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--fg-3); padding-top: 2px; }
.pfield .v { font-size: 0.875rem; color: var(--fg-2); line-height: 1.55; }
.pstack { display: flex; flex-wrap: wrap; gap: 7px; }
.tech { font-family: var(--font-mono); font-size: 0.72rem; color: var(--fg-2); white-space: nowrap; background: rgba(148,163,184,0.06); border: 1px solid var(--line); border-radius: var(--radius-xs); padding: 4px 9px; }
.light-theme .tech { background: rgba(15,23,42,0.04); }
.pcard-foot { margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.case-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 0.85rem; color: var(--fg-1); background: var(--bg-inset); border: 1px solid var(--line-strong); padding: 9px 15px; border-radius: var(--radius-sm); transition: var(--transition); }
.case-link:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.case-link svg { width: 15px; height: 15px; transition: transform 0.2s ease; }
.case-link:hover svg { transform: translateX(3px); }
.pcard-links { display: flex; align-items: center; gap: 16px; }
.repo-link { display: inline-flex; align-items: center; gap: 6px; font-size: 0.82rem; color: var(--fg-3); transition: color var(--transition); }
.repo-link:hover { color: var(--accent); }
.repo-link svg { width: 15px; height: 15px; }

/* ---- Modal étude de cas ------------------------------------------------- */
.modal-overlay {
    position: fixed; inset: 0; z-index: 200; background: rgba(4,8,16,0.72);
    backdrop-filter: blur(4px); display: flex; align-items: flex-start; justify-content: center;
    padding: 48px 24px; overflow-y: auto; opacity: 0; visibility: hidden; transition: opacity 0.25s ease, visibility 0.25s ease;
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
    width: 100%; max-width: 720px; background: var(--bg-surface); border: 1px solid var(--line-strong);
    border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden; margin: auto;
    transform: translateY(14px) scale(0.99); transition: transform 0.28s cubic-bezier(0.16,1,0.3,1);
}
.modal-overlay.open .modal { transform: translateY(0) scale(1); }
.modal-hero { aspect-ratio: 16 / 7; background-size: cover; background-position: center top; border-bottom: 1px solid var(--line); position: relative; }
.modal-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(9,14,26,0.1), rgba(9,14,26,0.55)); }
.modal-close { position: absolute; top: 16px; right: 16px; z-index: 2; width: 38px; height: 38px; display: inline-flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); background: rgba(9,14,26,0.6); border: 1px solid var(--line-strong); color: #fff; backdrop-filter: blur(6px); }
.modal-close:hover { background: rgba(9,14,26,0.85); }
.modal-close svg { width: 18px; height: 18px; }
.modal-body { padding: 32px; }
.modal-body .status { margin-bottom: 14px; }
.modal-body h3 { font-family: var(--font-heading); font-size: 1.7rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 8px; }
.modal-tagline { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.02em; color: var(--fg-3); margin-bottom: 24px; }
.cs-row { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 18px 0; border-top: 1px solid var(--line); }
.cs-row:first-of-type { border-top: none; padding-top: 0; }
.cs-row .label .eyebrow { font-size: 0.7rem; letter-spacing: 0.12em; }
.cs-row .content { font-size: 0.95rem; line-height: 1.65; color: var(--fg-2); }
.cs-row .content ul { display: grid; gap: 8px; }
.cs-row .content li { position: relative; padding-left: 18px; }
.cs-row .content li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.modal-foot { padding: 0 32px 32px; display: flex; gap: 12px; flex-wrap: wrap; }

/* ---- Expertise ---------------------------------------------------------- */
.expertise-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.exp-col { background: var(--bg-surface); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 30px 32px; box-shadow: var(--shadow-ring); transition: var(--transition); display: flex; flex-direction: column; }
.exp-col:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: var(--shadow-md), var(--shadow-ring); }
.exp-col .eyebrow { margin-bottom: 10px; }
.exp-col .col-desc { font-size: 0.95rem; color: var(--fg-2); line-height: 1.55; margin-bottom: 20px; }
.exp-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }

/* ---- Timeline expériences ----------------------------------------------- */
.timeline { position: relative; max-width: 820px; margin: 0 auto; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 4px; top: 8px; bottom: 8px; width: 1px; background: var(--line-strong); }
.tnode { position: relative; padding-bottom: 36px; }
.tnode:last-child { padding-bottom: 0; }
.tnode::before { content: ""; position: absolute; left: -28px; top: 5px; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.tnode-card { background: var(--bg-surface); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 24px 26px; box-shadow: var(--shadow-ring); transition: var(--transition); }
.tnode-card:hover { border-color: var(--line-strong); }
.tnode-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.tnode-co { font-family: var(--font-heading); font-size: 1.1rem; font-weight: 700; letter-spacing: -0.01em; }
.tnode-role { color: var(--accent); font-weight: 600; font-size: 0.9rem; margin-top: 3px; }
.tnode-meta { font-family: var(--font-mono); font-size: 0.72rem; color: var(--fg-3); white-space: nowrap; }
.tnode-points { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }

/* ---- Méthode ------------------------------------------------------------ */
.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.mstep { background: var(--bg-surface); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 28px; box-shadow: var(--shadow-ring); transition: var(--transition); }
.mstep:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: var(--shadow-md), var(--shadow-ring); }
.mstep .idx { font-family: var(--font-mono); font-size: 0.82rem; font-weight: 700; color: var(--accent); display: block; margin-bottom: 28px; }
.mstep h3 { font-family: var(--font-heading); font-size: 1.08rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 10px; }
.mstep p { font-size: 0.9rem; color: var(--fg-2); line-height: 1.55; }

/* ---- À propos + disponibilité ------------------------------------------- */
.about-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 56px; align-items: start; }
.about-title { font-family: var(--font-heading); font-weight: 800; font-size: clamp(1.7rem, 2.8vw, 2.3rem); letter-spacing: -0.025em; line-height: 1.12; margin-bottom: 24px; color: var(--fg-1); }
.about-text .eyebrow { margin-bottom: 18px; }
.about-text p { font-size: 1.05rem; line-height: 1.75; color: var(--fg-2); margin-bottom: 20px; }
.about-text p:last-child { margin-bottom: 0; }
.avail { background: var(--bg-surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px; position: sticky; top: 100px; box-shadow: var(--shadow-md), var(--shadow-ring); }
.avail-title { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 16px; }
.avail-title::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--status-prod-fg); box-shadow: 0 0 0 4px var(--status-prod-bg); }
.avail p { font-size: 0.92rem; color: var(--fg-2); line-height: 1.6; margin-bottom: 22px; }
.avail-meta { border-top: 1px solid var(--line); padding-top: 18px; margin-bottom: 22px; display: grid; gap: 14px; }
.avail-item { display: grid; gap: 4px; }
.avail-item .k { font-size: 0.78rem; color: var(--fg-3); font-family: var(--font-mono); letter-spacing: 0.03em; }
.avail-item .v { font-size: 0.9rem; font-weight: 600; color: var(--fg-1); }
.avail-actions { display: grid; gap: 10px; }

/* ---- Footer ------------------------------------------------------------- */
.footer { background: var(--bg-footer); border-top: 1px solid var(--line); padding: 40px 0 36px; }
.footer-row {
    display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, 0.8fr);
    justify-content: space-between; align-items: start; gap: 32px 64px;
}
.footer-left { display: flex; flex-direction: column; gap: 6px; }
.footer-copy { font-size: 0.88rem; color: var(--fg-2); }
.footer-right { display: grid; justify-items: end; gap: 14px; }
.footer-meta {
    max-width: 470px; text-align: right;
    font-family: var(--font-mono); font-size: 0.78rem; line-height: 1.55;
    color: var(--fg-3); letter-spacing: 0.01em;
}
.footer-loc { font-size: 0.82rem; color: var(--fg-3); }
.footer-nav {
    display: flex; flex-wrap: wrap;
    gap: 10px 28px; justify-content: flex-end; align-items: center;
}
.footer-nav a { font-size: 0.88rem; color: var(--fg-2); transition: var(--transition); }
.footer-nav a:hover { color: var(--accent); }

/* ---- Page 404 ----------------------------------------------------------- */
.error-page {
    min-height: 100vh; display: grid; grid-template-rows: auto 1fr auto;
    background:
        radial-gradient(circle at 75% 25%, var(--accent-soft), transparent 40%),
        radial-gradient(circle at 25% 75%, rgba(148, 163, 184, 0.03), transparent 40%),
        var(--bg-page);
    overflow: hidden;
}
.error-header {
    width: min(100% - 64px, var(--container)); margin: 0 auto;
    padding: 24px 0; display: flex; align-items: center;
    justify-content: space-between; gap: 24px;
    border-bottom: 1px solid var(--line);
}
.not-found {
    width: min(100% - 64px, var(--container)); margin: 0 auto;
    display: grid; align-items: center; padding: 64px 0;
    position: relative;
}
.not-found-panel { position: relative; max-width: 720px; padding: 32px 0; z-index: 2; }
.not-found-panel::before {
    content: ""; position: absolute;
    width: 40vw; height: 40vw; max-width: 500px; max-height: 500px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 60%);
    opacity: 0.08; top: 50%; left: 10%; transform: translateY(-50%);
    filter: blur(60px); border-radius: 50%; pointer-events: none;
    animation: pulse 6s ease-in-out infinite alternate;
}
.not-found-code {
    position: absolute; z-index: 0; top: -15%; left: -20px;
    font-family: var(--font-heading); font-size: clamp(10rem, 25vw, 22rem);
    font-weight: 800; line-height: 0.8; letter-spacing: -0.08em;
    color: transparent; -webkit-text-stroke: 2px var(--line-strong);
    opacity: 0.3; user-select: none;
    animation: float 8s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}
@keyframes pulse {
    0% { transform: translateY(-50%) scale(1); opacity: 0.06; }
    100% { transform: translateY(-50%) scale(1.15); opacity: 0.12; }
}
.not-found-panel > *:not(.not-found-code):not(::before) { position: relative; z-index: 1; }
.not-found-panel .eyebrow { margin-bottom: 24px; }
.not-found-panel h1 {
    max-width: 680px; margin-bottom: 20px;
    font-family: var(--font-heading); font-size: clamp(2.6rem, 7vw, 5.2rem);
    line-height: 1.02; letter-spacing: -0.045em; color: var(--fg-1);
}
.not-found-panel p {
    max-width: 620px; margin-bottom: 36px;
    font-size: clamp(1rem, 1.7vw, 1.2rem); line-height: 1.7; color: var(--fg-2);
}
.not-found-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.error-footer {
    width: min(100% - 64px, var(--container)); margin: 0 auto;
    padding: 24px 0 32px; display: flex; justify-content: space-between;
    gap: 16px 32px; border-top: 1px solid var(--line);
    color: var(--fg-3); font-size: 0.8rem;
    position: relative; z-index: 2;
}

/* ---- Retour en haut (flottant) ------------------------------------------ */
.back-to-top {
    position: fixed; right: 22px; bottom: 22px; z-index: 90;
    width: 46px; height: 46px; display: inline-flex; align-items: center; justify-content: center;
    color: var(--accent-fg); background: var(--accent); border: none; border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg); cursor: pointer;
    opacity: 0; visibility: hidden; transform: translateY(12px) scale(0.9);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease, background 0.2s ease;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
.back-to-top:hover { background: var(--accent-hover); transform: translateY(-2px) scale(1); }
.back-to-top svg { display: block; width: 18px; height: 18px; }

/* ---- Reveal au scroll --------------------------------------------------- */
.reveal {
    opacity: 0; transform: translateY(28px) scale(0.985);
    transition: opacity 0.55s ease-out, transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    transition-delay: var(--reveal-delay, 0ms);
}
.reveal.in { opacity: 1; transform: none; }
.projects-grid .pcard:nth-child(even),
.expertise-grid .exp-col:nth-child(even),
.method-grid .mstep:nth-child(even) { --reveal-delay: 90ms; }
.hero-focus { --reveal-delay: 120ms; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; }
    * { transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; }
}

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 1000px) {
    .hero-inner { grid-template-columns: 1fr; gap: 42px; }
    .hero-focus {
        max-width: 720px; padding: 24px 0 0; border-left: 0; border-top: 1px solid var(--line-strong);
    }
    .hero-focus::before { left: 0; top: -1px; width: 64px; height: 1px; }
    .hero-focus ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .expertise-grid { grid-template-columns: repeat(2, 1fr); }
    .method-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
    .nav-toggle { display: flex; }
    .header-actions > .btn { display: none; }
    .nav {
        position: absolute; top: 100%; left: 0; right: 0;
        flex-direction: column; gap: 4px; padding: 12px;
        background: color-mix(in srgb, var(--bg-page) 96%, transparent);
        backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--line);
        opacity: 0; visibility: hidden; transform: translateY(-4px);
        transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
    }
    .nav.open { opacity: 1; visibility: visible; transform: none; }
    .nav a { padding: 12px 16px; border-radius: var(--radius-xs); }
    .nav a:hover { background: var(--bg-surface-hover); }
    .nav a::after { left: 16px; right: 16px; }
    .projects-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; gap: 36px; }
    .avail { position: static; }
    .footer-row { grid-template-columns: 1fr; }
    .footer-right { justify-items: start; }
    .footer-meta { text-align: left; }
    .footer-nav { justify-content: start; }
}
@media (max-width: 560px) {
    .container { padding: 0 20px; }
    .header-inner { padding: 14px 20px; }
    .hero { padding-top: 132px; padding-bottom: 56px; }
    .hero-inner { gap: 34px; }
    .hero-focus ul { grid-template-columns: 1fr; }
    .expertise-grid, .method-grid { grid-template-columns: 1fr; }
    .hero-actions { width: 100%; gap: 10px; }
    .hero-actions .cv-action { width: 100%; }
    .hero-actions .cv-action > .btn-primary:first-child { flex: 1; }
    .hero-actions .btn-secondary { flex: 1; min-width: 0; max-width: 48%; }
    .cs-row { grid-template-columns: 1fr; gap: 8px; }
    .footer-row { text-align: left; gap: 24px; }
    .footer-left { align-items: flex-start; }
    .footer-right { width: 100%; justify-items: start; }
    .footer-meta { text-align: left; }
    .footer-nav { width: 100%; justify-content: flex-start; gap: 10px 20px; }
    .error-header, .not-found, .error-footer { width: min(100% - 40px, var(--container)); }
    .error-header .btn { display: none; }
    .not-found { padding: 48px 0; }
    .not-found-code { top: -28px; left: -4px; }
    .not-found-actions { display: grid; }
    .error-footer { flex-direction: column; }
    .back-to-top { right: 16px; bottom: 16px; }
}

/* ==========================================================================
   Ajustements typographiques — Syne (titres) toujours active.
   Syne est large et lourde : on resserre le tracking et on réduit
   légèrement la taille / le poids pour garder son caractère sans déborder.
   ========================================================================== */
.hero h1 { letter-spacing: -0.04em; font-size: clamp(2.3rem, 4.6vw, 3.7rem); font-weight: 700; }
.section-head h2,
.about-title { letter-spacing: -0.03em; font-size: clamp(1.5rem, 2.4vw, 2rem); font-weight: 700; }
.modal-body h3 { letter-spacing: -0.03em; font-size: 1.5rem; font-weight: 700; }
.pcard h3,
.tnode-co,
.mstep h3 { letter-spacing: -0.02em; font-weight: 700; }