:root {
    --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --bg: #000;
    --bg-card: #0a0a0c;
    --bg-card-2: #0f0f11;
    --text: #fff;
    --text-muted: #9ca3af;
    --text-soft: #6b7280;
    --border: rgba(255,255,255,0.08);
    --border-strong: rgba(255,255,255,0.15);
    --accent-gradient-from: #fff;
    --accent-gradient-to: #777;
    --header-blur-opacity: 0;
    --header-blur-amount: 0px;
    --header-blur-y: -10px;
    --ambient-image: url('images/ambient-default.jpg');
}

@supports (background-image: image-set(url("images/ambient-default.webp") type("image/webp"))) {
    :root {
        --ambient-image: image-set(
            url('images/ambient-default.webp') type('image/webp'),
            url('images/ambient-default.jpg') type('image/jpeg')
        );
    }
}

[data-theme="light"] {
    --bg: #f5f3ff;
    --bg-card: rgba(255,255,255,0.6);
    --bg-card-2: rgba(255,255,255,0.8);
    --text: #0a0a14;
    --text-muted: #4b5563;
    --text-soft: #6b7280;
    --border: rgba(10,10,20,0.08);
    --border-strong: rgba(10,10,20,0.15);
    --accent-gradient-from: #0a0a14;
    --accent-gradient-to: #6b7280;
}

* { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
html, body { background: var(--bg); transition: background-color 0.8s var(--ease-smooth); }
html { scrollbar-gutter: stable; overflow-y: scroll; }
body {
    color: var(--text);
    font-weight: 400;
    letter-spacing: -0.011em;
    overflow-x: hidden;
}

/* ===== Curseur personnalisé ===== */
@media (hover: hover) and (pointer: fine) {
    * {
        cursor: none !important;
    }

    .cursor-dot,
    .cursor-ring {
        position: fixed;
        top: 0;
        left: 0;
        pointer-events: none;
        z-index: 9999;
        border-radius: 50%;
        transform: translate(-50%, -50%);
        mix-blend-mode: difference;
    }
    .cursor-dot {
        width: 6px;
        height: 6px;
        background: #fff;
        transition: width 0.25s var(--ease-smooth), height 0.25s var(--ease-smooth), background 0.3s, border-color 0.3s, box-shadow 0.3s;
    }
    .cursor-ring {
        width: 36px;
        height: 36px;
        border: 1px solid #fff;
        transition: opacity 0.25s var(--ease-smooth), width 0.35s var(--ease-out-expo), height 0.35s var(--ease-out-expo), border-color 0.3s, background 0.3s;
    }
    .cursor-ring.hover {
        width: 48px;
        height: 48px;
        background: rgba(255,255,255,0.08);
        border-color: rgba(255,255,255,0.55);
    }
    .cursor-dot.hover {
        width: 5px;
        height: 5px;
    }
    .cursor-ring.down {
        width: 24px;
        height: 24px;
    }
}

[data-theme="dark"] ::selection { background: #fff; color: #000; }
[data-theme="light"] ::selection { background: #0a0a14; color: #fff; }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 10px; }

.skip-link {
    position: fixed;
    top: -100px;
    left: 16px;
    z-index: 9999;
    padding: 12px 20px;
    border-radius: 8px;
    background: var(--text);
    color: var(--bg);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: top 0.25s var(--ease-smooth);
}
.skip-link:focus { top: 16px; outline: none; }
*:focus { outline: none; }
*:focus-visible {
    outline: 2px solid var(--text);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ===== Barre de progression au scroll ===== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 0;
    background: linear-gradient(90deg, transparent, var(--text), transparent);
    z-index: 70;
    pointer-events: none;
    transition: width 0.08s linear, opacity 0.5s var(--ease-smooth);
    opacity: 0;
}
.scroll-progress.visible { opacity: 0.9; }

/* ===== Reveal de base + variantes ===== */
.reveal {
    opacity: 0.001;
    transform: translate3d(0, 22px, 0);
    transition:
        opacity 1s var(--ease-out-expo),
        transform 1s var(--ease-out-expo),
        filter 1s var(--ease-out-expo);
    will-change: opacity, transform;
}
.reveal.active { opacity: 1; transform: translate3d(0, 0, 0); }

.reveal-fade { transform: none; }
.reveal-scale { transform: translate3d(0, 18px, 0) scale(0.96); }
.reveal-scale.active { transform: translate3d(0, 0, 0) scale(1); }
.reveal-blur { filter: blur(10px); }
.reveal-blur.active { filter: blur(0); }
.reveal-left { transform: translate3d(-26px, 0, 0); }
.reveal-left.active { transform: translate3d(0, 0, 0); }
.reveal-right { transform: translate3d(26px, 0, 0); }
.reveal-right.active { transform: translate3d(0, 0, 0); }

.delay-50  { transition-delay: 35ms; }
.delay-100 { transition-delay: 70ms; }
.delay-150 { transition-delay: 105ms; }
.delay-200 { transition-delay: 140ms; }
.delay-250 { transition-delay: 175ms; }
.delay-300 { transition-delay: 210ms; }
.delay-400 { transition-delay: 280ms; }
.delay-500 { transition-delay: 350ms; }
.delay-700 { transition-delay: 490ms; }

/* Auto-stagger : les enfants directs apparaissent en cascade quand le parent reveal devient actif */
.reveal-stagger > * {
    opacity: 0.001;
    transform: translate3d(0, 18px, 0);
    transition:
        opacity 0.95s var(--ease-out-expo),
        transform 0.95s var(--ease-out-expo);
    will-change: opacity, transform;
}
.reveal-stagger.active > * { opacity: 1; transform: translate3d(0, 0, 0); }
.reveal-stagger.active > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.active > *:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger.active > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger.active > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger.active > *:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger.active > *:nth-child(6) { transition-delay: 400ms; }
.reveal-stagger.active > *:nth-child(7) { transition-delay: 480ms; }
.reveal-stagger.active > *:nth-child(8) { transition-delay: 560ms; }

/* ===== Headline du hero : entrée plus marquée ===== */
.headline {
    opacity: 0.001;
    transform: translate3d(0, 30px, 0);
    transition:
        opacity 1.3s var(--ease-out-expo) 80ms,
        transform 1.3s var(--ease-out-expo) 80ms,
        filter 1.3s var(--ease-out-expo) 80ms;
    filter: blur(8px);
    will-change: opacity, transform, filter;
}
.headline.active {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    filter: blur(0);
}

/* ===== Lueur animée derrière le hero ===== */
.hero-glow {
    position: absolute;
    inset: -25% -10% auto auto;
    width: 720px;
    height: 720px;
    background: radial-gradient(circle, color-mix(in srgb, var(--text) 9%, transparent) 0%, transparent 60%);
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
    animation: heroGlowDrift 14s ease-in-out infinite;
}
.hero-glow.alt {
    inset: auto auto -20% -15%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, color-mix(in srgb, var(--text) 6%, transparent) 0%, transparent 60%);
    animation: heroGlowDrift 16s ease-in-out infinite reverse;
}
@keyframes heroGlowDrift {
    0%, 100% { transform: scale(1) translate(0, 0); opacity: 0.7; }
    50% { transform: scale(1.12) translate(-2%, 3%); opacity: 1; }
}
[data-theme="light"] .hero-glow { opacity: 0.5; }

/* ===== Fond ambient ===== */
.ambient-fixed-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}
.ambient-fixed-image {
    position: absolute;
    inset: -8%;
    background-image: var(--ambient-image);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: blur(55px) saturate(115%);
    animation: ambientImgFloat 30s ease-in-out infinite;
}
[data-theme="light"] .ambient-fixed-image { filter: blur(28px) saturate(130%); }
@keyframes ambientImgFloat {
    0%, 100% { transform: scale(1.15) translate(0, 0); }
    50% { transform: scale(1.2) translate(-1%, -2%); }
}
.ambient-fixed-veil {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at center, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.82) 70%, rgba(0,0,0,0.95) 100%),
        linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.6) 100%);
}
[data-theme="light"] .ambient-fixed-veil {
    background:
        radial-gradient(ellipse at center, rgba(245,243,255,0.35) 0%, rgba(245,243,255,0.7) 70%, rgba(245,243,255,0.85) 100%),
        linear-gradient(180deg, rgba(245,243,255,0.25) 0%, rgba(245,243,255,0.55) 100%);
}

.dark-glow {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 1200px;
    height: 900px;
    background: radial-gradient(ellipse at center, rgba(16,185,129,0.10) 0%, rgba(6,182,212,0.06) 40%, transparent 70%);
    filter: blur(100px);
    pointer-events: none;
    z-index: 0;
}
[data-theme="light"] .dark-glow { display: none; }

.header-scroll-blur {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 118px;
    z-index: 55;
    pointer-events: none;
    opacity: var(--header-blur-opacity);
    transform: translateY(var(--header-blur-y));
    background: linear-gradient(
        to bottom,
        color-mix(in srgb, var(--bg) 74%, transparent),
        color-mix(in srgb, var(--bg) 32%, transparent) 58%,
        transparent
    );
    backdrop-filter: blur(var(--header-blur-amount)) saturate(145%);
    -webkit-backdrop-filter: blur(var(--header-blur-amount)) saturate(145%);
    mask-image: linear-gradient(to bottom, black 0%, black 58%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 0%, black 58%, transparent 100%);
    transition: opacity 0.35s var(--ease-smooth), transform 0.35s var(--ease-smooth), backdrop-filter 0.35s var(--ease-smooth);
}

/* ===== Texte gradient (avec shimmer optionnel) ===== */
.text-gradient {
    background: linear-gradient(180deg, var(--accent-gradient-from) 0%, var(--accent-gradient-to) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.text-gradient-shimmer {
    background: linear-gradient(
        90deg,
        var(--accent-gradient-from) 0%,
        var(--accent-gradient-to) 35%,
        var(--accent-gradient-from) 70%,
        var(--accent-gradient-to) 100%
    );
    background-size: 220% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: textShimmer 9s ease-in-out infinite;
}
@keyframes textShimmer {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ===== Bouton primaire avec shine ===== */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: background 0.35s var(--ease-smooth), color 0.35s var(--ease-smooth), box-shadow 0.4s var(--ease-smooth), transform 0.35s var(--ease-smooth), opacity 0.2s var(--ease-smooth);
}
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -120%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.28), transparent);
    transition: left 0.85s ease;
    pointer-events: none;
}
[data-theme="light"] .btn-primary::after { background: linear-gradient(90deg, transparent, rgba(255,255,255,0.55), transparent); }
.btn-primary:hover::after { left: 130%; }
[data-theme="dark"] .btn-primary { background: #fff; color: #000; }
[data-theme="light"] .btn-primary { background: #0a0a14; color: #fff; }
[data-theme="dark"] .btn-primary:hover { background: #e8e8e8; box-shadow: 0 12px 32px -10px rgba(255,255,255,0.18); transform: translateY(-1px); }
[data-theme="light"] .btn-primary:hover { background: #222235; box-shadow: 0 12px 32px -10px rgba(10,10,20,0.25); transform: translateY(-1px); }

.theme-toggle {
    transition: background 0.5s var(--ease-smooth), border-color 0.5s var(--ease-smooth), transform 0.3s var(--ease-smooth);
}
.theme-toggle:hover { transform: scale(1.06); }

/* ===== Glass card avec halo souris + élévation ===== */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition:
        background 0.6s var(--ease-smooth),
        border-color 0.4s var(--ease-smooth),
        transform 0.5s var(--ease-smooth),
        box-shadow 0.5s var(--ease-smooth);
    position: relative;
    overflow: hidden;
}
.glass-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(
        520px circle at var(--mx, -200px) var(--my, -200px),
        color-mix(in srgb, var(--text) 5%, transparent),
        transparent 42%
    );
    opacity: 0;
    transition: opacity 0.45s var(--ease-smooth);
    pointer-events: none;
    z-index: 0;
}
.glass-card > * { position: relative; z-index: 1; }
.glass-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-3px);
    box-shadow: 0 18px 44px -22px color-mix(in srgb, var(--text) 14%, transparent);
}
.glass-card:hover::before { opacity: 1; }

.craft-band {
    position: relative;
    overflow: hidden;
}
.craft-band::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 20% 20%, color-mix(in srgb, var(--text) 9%, transparent), transparent 34%),
        radial-gradient(circle at 80% 10%, color-mix(in srgb, var(--text) 6%, transparent), transparent 30%);
    opacity: 0.7;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    transition: background 0.4s var(--ease-smooth), border-color 0.4s var(--ease-smooth), color 0.4s var(--ease-smooth);
}
.badge:hover {
    border-color: var(--border-strong);
    color: var(--text);
}
.pill {
    display: inline-flex;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 12px;
    transition: border-color 0.3s var(--ease-smooth), color 0.3s var(--ease-smooth);
}
.glass-card:hover .pill { border-color: var(--border-strong); color: var(--text); }

/* Grille subtile en arrière-plan du hero, avec mouvement très lent */
.grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
    animation: gridDrift 60s linear infinite;
}
@keyframes gridDrift {
    from { background-position: 0 0; }
    to   { background-position: 80px 80px; }
}

.section-border { border-top: 1px solid var(--border); }
.body-copy { color: var(--text-muted); font-weight: 400; line-height: 1.75; }
.inline-link {
    color: var(--text);
    text-decoration: none;
    border-bottom: 1px solid var(--border-strong);
    transition: border-color 0.25s var(--ease-smooth), opacity 0.25s var(--ease-smooth);
}
.inline-link:hover {
    border-color: var(--text);
    opacity: 0.8;
}
.site-footer {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}
[data-theme="dark"] .site-footer { background: rgba(0,0,0,0.65); }
[data-theme="light"] .site-footer { background: rgba(255,255,255,0.65); }

/* Liens du footer : underline animée */
.site-footer a {
    position: relative;
    display: inline-block;
}
.site-footer a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease-out-expo);
}
.site-footer a:hover::after { transform: scaleX(1); }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .reveal,
    .reveal-stagger > *,
    .headline { opacity: 1; transform: none; filter: none; }
    .scroll-progress { display: none; }
}

/* ===== Apparition mot à mot des titres (rejouée à chaque entrée à l'écran) ===== */
.words-reveal .w-word {
    display: inline-block;
    opacity: 0;
    transform: translateY(0.45em);
    filter: blur(6px);
    transition: opacity 0.55s var(--ease-smooth), transform 0.65s var(--ease-smooth), filter 0.55s var(--ease-smooth);
    will-change: opacity, transform, filter;
}
.words-reveal.active .w-word { opacity: 1; transform: translateY(0); filter: blur(0); }
/* Les titres en dégradé clippent le fond sur le texte : chaque mot ré-hérite le dégradé */
.text-gradient .w-word {
    background: inherit;
    -webkit-background-clip: text;
    background-clip: text;
}
@media (prefers-reduced-motion: reduce) {
    .words-reveal .w-word { opacity: 1; transform: none; filter: none; transition: none; }
}