@font-face {
    font-family: 'Inter';
    src: url('assets/fonts/Inter/Inter-VariableFont_opsz,wght.ttf') format('truetype');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

:root {
    --bg: #f5f5f5;              /* 3% gray */
    --bg-solid: #f5f5f5;
    --text-color: #000000;
    --text-muted: #888888;
    --border-color: #e5e5e5;
    --font-main: 'Inter', -apple-system, sans-serif;
    --content-pad: 40px;
    --cloud-item-bg: #e8e8e8;
    --cloud-shadow: rgba(0,0,0,0.08);
    --cloud-shadow-hover: rgba(0,0,0,0.20);
}

/* ── DARK MODE ─────────────────────────────────────── */
body.dark {
    --bg: #0a0a0a;
    --bg-solid: #0a0a0a;
    --text-color: #f0f0f0;
    --text-muted: #666666;
    --border-color: #222222;
    --cloud-item-bg: #1a1a1a;
    --cloud-shadow: rgba(0,0,0,0.30);
    --cloud-shadow-hover: rgba(255,255,255,0.08);
}

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

body {
    background-color: var(--bg);
    color: var(--text-color);
    font-family: var(--font-main);
    font-size: 14px;
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
}

/* ----------------- SCROLL SYSTEM ----------------- */
.scroll-container {
    height: 1200vh;
    width: 100%;
}

.scene-container {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    overflow: hidden;
    pointer-events: none;
}

.phase-layer {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    will-change: transform, opacity;
}

.phase-layer.active {
    pointer-events: auto;
}

/* ----------------- SITE NAVIGATION ----------------- */
.site-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.6s ease;
}

.site-nav.visible {
    opacity: 1;
    pointer-events: auto;
}

.nav-left {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-color);
    transition: color 0.5s;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-logo-img {
    height: 34px;
    width: auto;
    transition: opacity 0.2s;
}
body.dark .nav-logo-img {
    -webkit-filter: invert(0.96);
    filter: invert(0.96);
}
.nav-logo:hover .nav-logo-img {
    opacity: 0.5;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-color);
    text-decoration: none;
    transition: opacity 0.2s, color 0.5s;
}

.nav-link:hover {
    opacity: 0.5;
}

/* ── Dark mode toggle ── */
.dark-toggle {
    width: 28px; height: 28px;
    border: 1.5px solid var(--text-color);
    border-radius: 50%;
    background: none;
    cursor: pointer;
    position: relative;
    transition: border-color 0.5s, background-color 0.3s;
}

.dark-toggle::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--text-color);
    transform: translate(-50%, -50%);
    transition: background 0.5s, transform 0.3s;
}

body.dark .dark-toggle::after {
    background: #f0f0f0;
}

.dark-toggle:hover {
    background: rgba(128,128,128,0.1);
}

/* ----------------- CONTACT SECTION ----------------- */
.contact-section {
    padding: 60px 0 20px;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
    transition: border-color 0.5s;
}

.contact-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.contact-link {
    font-size: clamp(20px, 3vw, 32px);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-color);
    text-decoration: none;
    transition: opacity 0.2s, color 0.5s;
}

.contact-link:hover {
    opacity: 0.45;
}

.contact-socials {
    display: flex;
    gap: 24px;
    margin-top: 20px;
}

.contact-social {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.contact-social:hover {
    color: var(--text-color);
}

/* ----------------- PHASE 1: INTRO PLATE ----------------- */
#phase-intro {
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 30;
    background-color: var(--bg);
    transition: background-color 0.5s;
}

.plate-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60vw;
    max-width: 800px;
}

#svg-container svg {
    width: 100%;
    height: auto;
    overflow: visible;
    transition: filter 0.5s ease;
}
body.dark #svg-container svg {
    -webkit-filter: invert(0.96);
    filter: invert(0.96);
}

#svg-container svg > g {
    opacity: 0;
    transform: translate(0px, 0px);
    will-change: opacity, transform;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    animation: flash 2s infinite;
}

@keyframes flash {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* ----------------- PHASE 2: POINT CLOUD (Three.js) ----------------- */
#phase-cloud {
    z-index: 20;
    opacity: 0;
}

#cloud-canvas {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: auto;
    z-index: 1;
    touch-action: pan-y; /* 1 doigt = scroll natif, 2 doigts = rotation via JS */
}

/* Thumbnail overlay on hover */
.cloud-thumbnail {
    position: absolute;
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, -100%) scale(0.85);
    transition: opacity 0.35s ease-out, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
}

.cloud-thumbnail.visible {
    opacity: 1;
    transform: translate(-50%, -100%) scale(1);
    pointer-events: auto;
}

.cloud-thumbnail video,
.cloud-thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

/* Technical circle around associated point + connector line */
.thumb-circle {
    stroke: var(--text-color);
    opacity: 0.45;
    transition: stroke 0.5s;
}
.thumb-line {
    stroke: var(--text-color);
    opacity: 0.25;
    stroke-dasharray: 3 2;
    transition: stroke 0.5s;
}
.thumb-info {
    fill: var(--text-color);
    opacity: 0.5;
    letter-spacing: 0.5px;
}

/* ----------------- PHASE 3: CLASSIC LIST ----------------- */
#phase-classic {
    z-index: 10;
    background-color: var(--bg);
    display: flex;
    align-items: flex-start;
    transition: background-color 0.5s;
    overflow: hidden;
}

.classic-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    padding: var(--content-pad);
    padding-top: 80px; /* space for nav */
    background: var(--bg-solid);
    transition: background-color 0.5s;
}

.project-list {
    display: flex;
    flex-direction: column;
}

.project-item {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    align-items: center;
    padding: 18px 0;
    border-bottom: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-color);
    transition: padding 0.3s ease, background-color 0.3s ease, color 0.5s, border-color 0.5s;
}

.project-item:first-child {
    border-top: 1px solid var(--border-color);
}

.project-item:hover {
    padding: 18px 20px;
    background-color: rgba(128,128,128,0.06);
}

.project-name {
    font-size: clamp(24px, 3vw, 48px);
    font-weight: 500;
    letter-spacing: -0.02em;
}

.project-role {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-muted);
    text-align: right;
    padding-right: 40px;
}

.project-year {
    font-size: 14px;
    font-weight: 500;
    text-align: right;
}

.classic-footer {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    padding-top: 40px;
}

/* ----------------- MOBILE ADJUSTMENTS ----------------- */
@media (max-width: 768px) {
    .nav-logo-img {
        height: 28px;
    }
}

/* ----------------- REDUCED MOTION ----------------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}