/* ─── TOKENS ─── */
:root,
[data-theme="dark"] {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2.2rem, 1.2rem + 4vw, 3rem);
  --text-hero: 5rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --color-bg: #08080b;
  --color-surface: rgba(16, 18, 30, 0.78);
  --color-surface-2: rgba(26, 29, 44, 0.86);
  --color-surface-offset: rgba(35, 39, 58, 0.68);
  --color-border: rgba(255, 255, 255, 0.12);
  --color-divider: rgba(255, 255, 255, 0.08);
  --color-text: #f7f2e8;
  --color-text-muted: rgba(247, 242, 232, 0.72);
  --color-text-faint: rgba(247, 242, 232, 0.46);
  --color-text-inverse: #0a0b11;
  --color-primary: #ffffff;
  --color-secondary: #F9BFFF;
  --color-accent: #44A1FF;
  --color-mint: #5DFFCE;
  --color-warm: #FFC4A1;

  --radius-sm: 5px;
  --radius-md: 5px;
  --radius-lg: 5px;
  --radius-xl: 5px;
  --radius-full: 9999px;

  --shadow-lg: 0 24px 80px rgba(0, 0, 0, 0.45);

  --font-display: 'Spline Sans', sans-serif;
  --font-body: 'Spline Sans', sans-serif;

  --content: min(1300px, calc(100vw - 10rem));
  --transition: 220ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
  --color-bg: #f6f2eb;
  --color-surface: rgba(255, 255, 255, 0.76);
  --color-surface-2: rgba(250, 245, 255, 0.92);
  --color-surface-offset: rgba(227, 234, 255, 0.72);
  --color-border: rgba(10, 11, 17, 0.12);
  --color-divider: rgba(10, 11, 17, 0.08);
  --color-text: #0d1020;
  --color-text-muted: rgba(13, 16, 32, 0.72);
  --color-text-faint: rgba(13, 16, 32, 0.5);
  --color-text-inverse: #faf7f1;
  --shadow-lg: 0 20px 70px rgba(79, 52, 113, 0.15);
}


/* ─── RESET ─── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background:
    radial-gradient(circle at 15% 20%, rgba(249, 191, 255, 0.10), transparent 24%),
    radial-gradient(circle at 78% 76%, rgba(93, 255, 206, 0.12), transparent 28%),
    radial-gradient(circle at 65% 18%, rgba(68, 161, 255, 0.10), transparent 22%),
    linear-gradient(135deg, #0b0811 0%, #07080d 40%, #071119 100%);
  line-height: 1.6;
  overflow-x: hidden;
}

[data-theme="light"] body,
html[data-theme="light"] body {
  background:
    radial-gradient(circle at 15% 20%, rgba(249, 191, 255, 0.18), transparent 24%),
    radial-gradient(circle at 78% 76%, rgba(93, 255, 206, 0.16), transparent 28%),
    radial-gradient(circle at 65% 18%, rgba(68, 161, 255, 0.16), transparent 22%),
    linear-gradient(135deg, #f8f4ee 0%, #f4f1f8 40%, #edf5f8 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

img,
video,
svg {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}


/* ─── NAV ─── */
.pill.skip-link {
  z-index: 100;
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: var(--content);
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

header {
  margin-top: 20px;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  font-family: var(--font-display);
}

.nav {
  min-height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-mark {
  width: 2.75rem;
  aspect-ratio: 1;
  border-radius: 5px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: linear-gradient(135deg, rgba(249, 191, 255, 0.28), rgba(93, 255, 206, 0.18));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 20%;
  border: 1px solid rgba(247, 242, 232, 0.9);
  transform: rotate(45deg);
}

.brand-mark::after {
  inset: 34%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* ─── BURGER BUTTON ─── */
.burger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2rem;
  height: 2rem;
  padding: 0.3rem;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  flex-shrink: 0;
}

.burger-btn span {
  display: block;
  height: 1.5px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
  transform-origin: center;
}

.nav-open .burger-btn span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-open .burger-btn span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-open .burger-btn span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.pill {
  padding: 0.3rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: transform var(--transition), border-color var(--transition), color var(--transition), background var(--transition);
}

.pill:hover,
.pill:focus-visible {
  transform: translateY(-2px);
}

.pill-back {
  border: 1px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.pill-back svg {
  width: 14px;
  height: 14px;
}

.theme-toggle {
  width: 2.9rem;
  display: grid;
  place-items: center;
}

.lang-toggle {
  font-size: 0.75rem;
  line-height: 1;
  padding: 0.15rem 0.25rem;
  border: none;
  background: none;
  border-radius: 4px;
  opacity: 0.55;
  transition: opacity var(--transition);
  min-width: auto;
  letter-spacing: 0;
  font-weight: 400;
}
.lang-toggle:hover,
.lang-toggle:focus-visible {
  opacity: 1;
  transform: none;
}


/* ─── LAYOUT ─── */
main {
  padding-bottom: var(--space-24);
}

section {
  padding-block: clamp(var(--space-12), 5vw, var(--space-20));
  display: flex;
  flex-direction: column;
}

#projets .btn {
  width: fit-content;
  align-self: center;
  margin-top: 60px;
}


/* ─── SHARED UTILS ─── */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-10);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: var(--text-xs);
}

.eyebrow::before {
  content: "";
  width: 3rem;
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
}

.tag {
  align-self: flex-start;
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: rgba(20, 20, 42, 0.46);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
  z-index: 4;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}


/* ─── BUTTONS ─── */
.btn {
  min-height: 2.5rem;
  padding: 0.4rem 1.35rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), color-mix(in srgb, var(--color-secondary) 60%, white 10%));
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  border: 1px solid var(--color-border);
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-3px);
}


/* ─── HERO ─── */
h1 {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  line-height: 1.1;
  letter-spacing: -0.05em;
  max-width: 9ch;
  font-weight: 600;
}

.hero {
  display: grid;
  align-items: center;
}

.hero-grid {
  display: grid;
  gap: var(--space-10);
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  align-items: center;
}

.hero p {
  color: var(--color-text-muted);
  max-width: 58ch;
  margin-top: var(--space-10);
}

.hero-actions {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero-card {
  position: relative;
  padding: clamp(1.4rem, 2vw, 2rem);
  border-radius: 5px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  min-height: 32rem;
  display: grid;
  align-content: space-between;
  isolation: isolate;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.22)),
    linear-gradient(160deg, rgba(6, 8, 20, 0.82), rgba(16, 22, 30, 0.55));
  z-index: -2;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  will-change: transform;
}

.hero-glow--rose {
  width: 60%;
  height: 60%;
  top: -18%;
  left: -4%;
  background: rgba(249, 191, 255, 0.22);
  filter: blur(72px);
  animation: glow-rose-drift 16s ease-in-out infinite alternate;
}

.hero-glow--green {
  width: 55%;
  height: 55%;
  bottom: -12%;
  right: -6%;
  background: rgba(93, 255, 206, 0.20);
  filter: blur(72px);
  animation: glow-green-drift 20s ease-in-out infinite alternate;
  animation-delay: -9s;
}

@keyframes glow-rose-drift {
  from { transform: translate(0, 0); }
  to   { transform: translate(12%, 18%); }
}

@keyframes glow-green-drift {
  from { transform: translate(0, 0); }
  to   { transform: translate(-14%, -12%); }
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 85%);
  z-index: -1;
}


/* ─── FLOATING SHAPES ─── */
.floating-shape {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.35);
  opacity: 0.9;
}

/* Rings: rotation lente + cycle de teinte */
.shape-rings {
  width: 9rem;
  height: 9rem;
  right: 0;
  top: 12rem;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 5px;
  overflow: hidden;
  animation: rings-hue 20s linear infinite;
  animation-delay: -6s;
}

@keyframes rings-hue {
  0%   { filter: hue-rotate(0deg)   brightness(1);    }
  50%  { filter: hue-rotate(180deg) brightness(0.75); }
  100% { filter: hue-rotate(360deg) brightness(1);    }
}

.shape-rings::before { content: none; }

@keyframes rings-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ── Crescent rings: fill annulus masked by offset circle → non-uniform stroke ── */
.rings-inner {
  position: absolute;
  inset: 0;
  animation: rings-spin 80s linear infinite;
}

.sring {
  position: absolute;
  border-radius: 50%;
}

.sring::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
}

/*
 * 8 rings, centres de 22% à 43% (pas 3%), gap 3px entre anneaux.
 * Δ proportionnel (1→4.5px) : stroke minimum garanti ≥1.5px sur tous les anneaux.
 * Mask center = (outer_r − Δ, outer_r + Δ) dans l'élément (décalé gauche+bas).
 */

/* Ring 1 — outer 12px, Δ=1 → mask (11,13) r=9 */
.sring--1 {
  width: 24px; height: 24px;
  left: calc(22% - 12px); top: calc(22% - 12px);
  -webkit-mask: radial-gradient(circle 9px at 11px 13px, transparent 9px, black 9px);
  mask: radial-gradient(circle 9px at 11px 13px, transparent 9px, black 9px);
}
.sring--1::before {
  background: radial-gradient(circle, rgba(93,255,206,.45) 12px, transparent 12px);
}

/* Ring 2 — outer 23px, inner 15px, Δ=1.5 → mask (21.5,24.5) r=19 */
.sring--2 {
  width: 46px; height: 46px;
  left: calc(25% - 23px); top: calc(25% - 23px);
  -webkit-mask: radial-gradient(circle 19px at 21.5px 24.5px, transparent 19px, black 19px);
  mask: radial-gradient(circle 19px at 21.5px 24.5px, transparent 19px, black 19px);
}
.sring--2::before {
  background: radial-gradient(circle, transparent 15px, rgba(93,255,206,.72) 15px 23px, transparent 23px);
}

/* Ring 3 — outer 36px, inner 26px, Δ=2 → mask (34,38) r=31 */
.sring--3 {
  width: 72px; height: 72px;
  left: calc(28% - 36px); top: calc(28% - 36px);
  -webkit-mask: radial-gradient(circle 31px at 34px 38px, transparent 31px, black 31px);
  mask: radial-gradient(circle 31px at 34px 38px, transparent 31px, black 31px);
}
.sring--3::before {
  background: radial-gradient(circle, transparent 26px, rgba(93,255,206,.30) 26px 36px, transparent 36px);
}

/* Ring 4 — outer 50px, inner 39px, Δ=2.5 → mask (47.5,52.5) r=44 */
.sring--4 {
  width: 100px; height: 100px;
  left: calc(31% - 50px); top: calc(31% - 50px);
  -webkit-mask: radial-gradient(circle 44px at 47.5px 52.5px, transparent 44px, black 44px);
  mask: radial-gradient(circle 44px at 47.5px 52.5px, transparent 44px, black 44px);
}
.sring--4::before {
  background: radial-gradient(circle, transparent 39px, rgba(93,255,206,.65) 39px 50px, transparent 50px);
}

/* Ring 5 — outer 65px, inner 53px, Δ=3 → mask (62,68) r=59 */
.sring--5 {
  width: 130px; height: 130px;
  left: calc(34% - 65px); top: calc(34% - 65px);
  -webkit-mask: radial-gradient(circle 59px at 62px 68px, transparent 59px, black 59px);
  mask: radial-gradient(circle 59px at 62px 68px, transparent 59px, black 59px);
}
.sring--5::before {
  background: radial-gradient(circle, transparent 53px, rgba(93,255,206,.25) 53px 65px, transparent 65px);
}

/* Ring 6 — outer 81px, inner 68px, Δ=3.5 → mask (77.5,84.5) r=74 */
.sring--6 {
  width: 162px; height: 162px;
  left: calc(37% - 81px); top: calc(37% - 81px);
  -webkit-mask: radial-gradient(circle 74px at 77.5px 84.5px, transparent 74px, black 74px);
  mask: radial-gradient(circle 74px at 77.5px 84.5px, transparent 74px, black 74px);
}
.sring--6::before {
  background: radial-gradient(circle, transparent 68px, rgba(93,255,206,.60) 68px 81px, transparent 81px);
}

/* Ring 7 — outer 98px, inner 84px, Δ=4 → mask (94,102) r=90 */
.sring--7 {
  width: 196px; height: 196px;
  left: calc(40% - 98px); top: calc(40% - 98px);
  -webkit-mask: radial-gradient(circle 90px at 94px 102px, transparent 90px, black 90px);
  mask: radial-gradient(circle 90px at 94px 102px, transparent 90px, black 90px);
}
.sring--7::before {
  background: radial-gradient(circle, transparent 84px, rgba(93,255,206,.35) 84px 98px, transparent 98px);
}

/* Ring 8 — outer 116px, inner 101px, Δ=4.5 → mask (111.5,120.5) r=108 */
.sring--8 {
  width: 232px; height: 232px;
  left: calc(43% - 116px); top: calc(43% - 116px);
  -webkit-mask: radial-gradient(circle 108px at 111.5px 120.5px, transparent 108px, black 108px);
  mask: radial-gradient(circle 108px at 111.5px 120.5px, transparent 108px, black 108px);
}
.sring--8::before {
  background: radial-gradient(circle, transparent 101px, rgba(93,255,206,.55) 101px 116px, transparent 116px);
}

/* ── Follow-the-leader : ring-1 mène, chaque suivant décalé de 50ms ── */
@keyframes ring-lead {
  0%, 100% { transform: translate(0,    0);    }
  25%       { transform: translate(4px, -5px); }
  50%       { transform: translate(-3px, 3px); }
  75%       { transform: translate(3px,  5px); }
}

.sring--1 { animation: ring-lead 8s ease-in-out infinite; animation-delay:    0ms; }
.sring--2 { animation: ring-lead 8s ease-in-out infinite; animation-delay:  400ms; }
.sring--3 { animation: ring-lead 8s ease-in-out infinite; animation-delay:  800ms; }
.sring--4 { animation: ring-lead 8s ease-in-out infinite; animation-delay: 1200ms; }
.sring--5 { animation: ring-lead 8s ease-in-out infinite; animation-delay: 1600ms; }
.sring--6 { animation: ring-lead 8s ease-in-out infinite; animation-delay: 2000ms; }
.sring--7 { animation: ring-lead 8s ease-in-out infinite; animation-delay: 2400ms; }
.sring--8 { animation: ring-lead 8s ease-in-out infinite; animation-delay: 2800ms; }

/* Diamond: lente dérive + glow pulsé */
.shape-diamond {
  width: 9rem;
  height: 9rem;
  top: 2.5rem;
  left: 2.5rem;
  border-radius: 5px;
  animation: diamond-float 8s ease-in-out infinite;
}

@keyframes diamond-float {
  0%, 100% { transform: rotate(45deg) translateY(0px);   box-shadow: 0 0 20px rgba(93, 255, 206, 0.25); }
  50%       { transform: rotate(47deg) translateY(-8px);  box-shadow: 0 0 30px rgba(249, 191, 255, 0.35); }
}

.shape-diamond::before,
.shape-diamond::after,
.shape-square::before {
  content: "";
  position: absolute;
  inset: 18%;
  border-radius: 5px;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.shape-diamond::after {
  inset: 31%;
  background: linear-gradient(135deg, #5DFFCE, #44A1FF, #F9BFFF, #FFC4A1, #5DFFCE);
  background-size: 300% 300%;
  border: none;
  animation: node-gradient 8s ease-in-out infinite;
}

/* Arc circulaire : déborde en bas-gauche, nodes qui flottent autour */
.shape-circ {
  position: absolute;
  left: -6rem;
  bottom: -6rem;
  width: 20rem;
  height: 20rem;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  pointer-events: none;
}

.shape-circ::before {
  content: "";
  position: absolute;
  inset: 14%;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.circ-node {
  position: absolute;
  top: 50%; left: 50%;
  background: linear-gradient(135deg, #5DFFCE, #44A1FF, #F9BFFF, #FFC4A1, #5DFFCE);
  background-size: 300% 300%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  animation: orbit-spin linear infinite,
             node-gradient ease-in-out infinite,
             node-glow     ease-in-out infinite;
}

/* Carré — orbite proche (r 8.5rem), rapide */
.circ-node--1 {
  width: 1.5rem; height: 1.5rem; border-radius: 5px;
  margin: -0.75rem 0 0 -0.75rem;
  --r: 8.5rem;
  animation-duration: 18s, 8s, 8s;
  animation-delay: 0s, 0s, 0s;
}
/* Cercle — orbite plus loin (r 10.8rem), lent */
.circ-node--2 {
  width: 1.3rem; height: 1.3rem; border-radius: 50%;
  margin: -0.65rem 0 0 -0.65rem;
  --r: 10.8rem;
  animation-duration: 28s, 9s, 9s;
  animation-delay: -7s, -2.5s, -2s;
}
/* Grand carré — orbite intermédiaire (r 9.6rem), lent */
.circ-node--3 {
  width: 1.8rem; height: 1.8rem; border-radius: 5px;
  margin: -0.9rem 0 0 -0.9rem;
  --r: 9.6rem;
  animation-duration: 23s, 10s, 10s;
  animation-delay: -11.5s, -4s, -3.5s;
}
/* Petit cercle — orbite la plus loin (r 11.8rem), très lent */
.circ-node--4 {
  width: 1.15rem; height: 1.15rem; border-radius: 50%;
  margin: -0.575rem 0 0 -0.575rem;
  --r: 11.8rem;
  animation-duration: 36s, 7s, 7s;
  animation-delay: -27s, -5.5s, -5s;
}
/* Petit carré — orbite très basse (r 5rem), rapide */
.circ-node--5 {
  width: 1rem; height: 1rem; border-radius: 5px;
  margin: -0.5rem 0 0 -0.5rem;
  --r: 5rem;
  animation-duration: 13s, 6s, 6s;
  animation-delay: -3.25s, -1s, -0.5s;
}
/* Grand carré — orbite basse (r 6.8rem) */
.circ-node--6 {
  width: 1.9rem; height: 1.9rem; border-radius: 5px;
  margin: -0.95rem 0 0 -0.95rem;
  --r: 6.8rem;
  animation-duration: 20s, 11s, 11s;
  animation-delay: -15s, -3s, -2.5s;
}
/* Cercle moyen — orbite basse-médiane (r 7.8rem) */
.circ-node--7 {
  width: 1.4rem; height: 1.4rem; border-radius: 50%;
  margin: -0.7rem 0 0 -0.7rem;
  --r: 7.8rem;
  animation-duration: 26s, 9s, 9s;
  animation-delay: -6.5s, -6s, -5.5s;
}
/* Très petit carré — orbite extérieure (r 13rem), très lent */
.circ-node--8 {
  width: 0.85rem; height: 0.85rem; border-radius: 5px;
  margin: -0.425rem 0 0 -0.425rem;
  --r: 13rem;
  animation-duration: 44s, 8s, 8s;
  animation-delay: -33s, -7s, -6s;
}

/* Square: dérive irrégulière */
.shape-square {
  width: 5rem;
  height: 5rem;
  top: 4rem;
  right: 3rem;
  border-radius: 5px;
  overflow: hidden;
  animation: square-drift 13s ease-in-out infinite;
  animation-delay: -4s;
}

@keyframes square-drift {
  0%, 100% { transform: translateY(0px)   rotate(0deg);  box-shadow: 0 0 14px rgba(68, 161, 255, 0.18); }
  33%       { transform: translateY(-10px) rotate(-4deg); box-shadow: 0 0 22px rgba(93, 255, 206, 0.28); }
  66%       { transform: translateY(-5px)  rotate(3deg);  box-shadow: 0 0 16px rgba(255, 196, 161, 0.22); }
}

.shape-square::before {
  inset: 15%;
  border-radius: 5px;
  background: linear-gradient(135deg, rgba(7, 10, 26, 0.5), rgba(93, 255, 206, 0.25));
}

.shape-footer {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 9.5rem;
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.14);
  padding: 1px;
  border-radius: 5px;
  overflow: hidden;
}

.shape-footer span {
  background: rgba(255, 255, 255, 0.06);
  position: relative;
}

/* Cercles : gradient animé + glow */
.shape-footer span:nth-child(1)::after,
.shape-footer span:nth-child(4)::after {
  content: "";
  position: absolute;
  inset: 18%;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: linear-gradient(135deg, #5DFFCE, #44A1FF, #F9BFFF, #FFC4A1, #5DFFCE);
  background-size: 300% 300%;
  animation: node-gradient 7s ease-in-out infinite, footer-glow 7s ease-in-out infinite;
}

.shape-footer span:nth-child(4)::after {
  animation-delay: -3.5s, -3.5s;
}

/* Carrés : gradient animé + glow + rotation avec anticipation */
.shape-footer span:nth-child(2)::after,
.shape-footer span:nth-child(3)::after {
  content: "";
  position: absolute;
  inset: 22%;
  border-radius: 5px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: linear-gradient(135deg, #5DFFCE, #44A1FF, #F9BFFF, #FFC4A1, #5DFFCE);
  background-size: 300% 300%;
  animation: footer-sq-spin 18s linear infinite, node-gradient 9s ease-in-out infinite, footer-glow 9s ease-in-out infinite;
}

@keyframes footer-glow {
  0%   { box-shadow: 0 0 5px 1px rgba(93,  255, 206, 0.35); }
  25%  { box-shadow: 0 0 5px 1px rgba(68,  161, 255, 0.35); }
  50%  { box-shadow: 0 0 5px 1px rgba(249, 191, 255, 0.35); }
  75%  { box-shadow: 0 0 5px 1px rgba(255, 196, 161, 0.35); }
  100% { box-shadow: 0 0 5px 1px rgba(93,  255, 206, 0.35); }
}

.shape-footer span:nth-child(2)::after {
  animation-delay: 0s, 0s, 0s;
}

.shape-footer span:nth-child(3)::after {
  animation-delay: -9s, -4.5s, -4.5s;
}

@keyframes footer-sq-spin {
  /* Hold au départ */
  0%   { transform: rotate(45deg); animation-timing-function: ease; }
  10%  { transform: rotate(45deg); animation-timing-function: cubic-bezier(0.88, 0, 0.12, 1); }
  /* 180° fort ease-in-out */
  36%  { transform: rotate(225deg); animation-timing-function: ease-out; }
  /* Hold */
  46%  { transform: rotate(225deg); animation-timing-function: ease-in; }
  /* Anticipation -15° puis 90° avec ressort */
  50%  { transform: rotate(210deg); animation-timing-function: cubic-bezier(0.34, 1.45, 0.64, 1); }
  67%  { transform: rotate(308deg); animation-timing-function: ease-out; }
  /* Settle */
  70%  { transform: rotate(300deg); animation-timing-function: ease; }
  /* Hold */
  78%  { transform: rotate(300deg); animation-timing-function: ease-in; }
  /* Anticipation -10° puis 45° avec léger ressort */
  82%  { transform: rotate(290deg); animation-timing-function: cubic-bezier(0.34, 1.2, 0.64, 1); }
  95%  { transform: rotate(348deg); animation-timing-function: ease-out; }
  /* Settle et retour au cycle (45 + 360 = 405) */
  100% { transform: rotate(405deg); }
}


/* ─── SECTION HEADING ─── */
h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  letter-spacing: -0.04em;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-4);
  align-items: end;
  margin-bottom: var(--space-8);
}

.section-heading p {
  color: var(--color-text-muted);
  max-width: 54ch;
}


/* ─── PROJECTS ─── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-4);
}

.project {
  position: relative;
  overflow: hidden;
  min-height: 30rem;
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-lg);
  transition:
    opacity 700ms ease,
    transform 700ms ease,
    translate 0.25s cubic-bezier(0.22, 1, 0.36, 1),
    scale 0.25s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.2s ease;
  will-change: translate, scale;
}

.project:hover {
  border-color: rgba(255, 255, 255, 0.35);
}

.project.large  { grid-column: span 7; }
.project.tall   { grid-column: span 5; min-height: 28rem; }
.project.medium { grid-column: span 4; }
.project.wide   { grid-column: span 8; }
.project.small  { grid-column: span 6; }

.project::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 12%, rgba(249, 191, 255, 0.18), transparent 18%),
    radial-gradient(circle at 82% 75%, rgba(93, 255, 206, 0.14), transparent 18%),
    linear-gradient(180deg, rgba(12, 12, 18, 0.05), rgba(5, 8, 18, 0.62));
  z-index: 0;
}

.project > * {
  position: relative;
  z-index: 1;
}

.project h3 {
  margin-top: var(--space-8);
  font-size: var(--text-xl);
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  max-width: 15ch;
}

.project p {
  color: var(--color-text-muted);
  max-width: 34ch;
  margin-top: var(--space-3);
}

.project footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  margin-top: var(--space-3);
}

.project footer span {
  white-space: nowrap;
}

.image-container {
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  overflow: hidden;
  position: relative;
  height: 100%;
  padding: 20px;
}

.image-container > img {
  position: absolute;
  width: 100%;
  min-height: 100%;
  object-fit: cover;
  top: 0;
  left: 0;
  z-index: 3;
}

.project-visual {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.95;
}

.project-visual.grid::before {
  content: "";
  position: absolute;
  inset: 1.5rem;
  border-radius: 1.4rem;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.75));
}

.project-visual.lines::before {
  content: "";
  position: absolute;
  left: 8%;
  bottom: -8%;
  width: 42%;
  height: 55%;
  background: repeating-radial-gradient(circle at 0% 0%, transparent 0 15px, rgba(249, 191, 255, 0.88) 15px 19px);
  clip-path: polygon(0 0, 100% 0, 72% 100%, 0 100%);
  opacity: 0.75;
}

.project-visual.rings::before {
  content: "";
  position: absolute;
  right: 8%;
  top: 12%;
  width: 9rem;
  height: 9rem;
  border-radius: 1.25rem;
  background: repeating-radial-gradient(circle, transparent 0 8px, rgba(93, 255, 206, 0.9) 8px 12px);
}

.project-visual.blocks::before,
.project-visual.blocks::after {
  content: "";
  position: absolute;
  width: 8rem;
  height: 8rem;
  transform: rotate(45deg);
  border: 1px solid rgba(255, 255, 255, 0.48);
  background: linear-gradient(135deg, rgba(249, 191, 255, 0.3), rgba(93, 255, 206, 0.18));
}

.project-visual.blocks::before {
  top: 14%;
  left: 10%;
}

.project-visual.blocks::after {
  right: 12%;
  bottom: 14%;
}


/* ─── ABOUT ─── */
.about-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: var(--space-8);
  align-items: stretch;
}

.about-card,
.timeline,
.contact-panel {
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-surface) 90%, transparent);
  box-shadow: var(--shadow-lg);
}

.about-card {
  padding: clamp(1.4rem, 2vw, 2rem);
  min-height: 30rem;
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
}

.about-card > * {
  position: relative;
  z-index: 1;
}

.portrait-orbit {
  width: min(100%, 22rem);
  aspect-ratio: 1;
  margin-bottom: var(--space-8);
  position: relative;
  display: grid;
  place-items: center;
  margin-inline: auto;
}

.portrait-orbit::before,
.portrait-orbit::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  z-index: -1;
}

.portrait-orbit::after {
  inset: 12%;
  border-style: dashed;
}

.portrait-core {
  width: 45%;
  aspect-ratio: 1;
  border-radius: 1.6rem;
  transform: rotate(45deg);
  background: linear-gradient(135deg, rgba(93, 255, 206, 0.82), rgba(249, 191, 255, 0.9));
  display: grid;
  place-items: center;
  box-shadow: 0 0 80px rgba(93, 255, 206, 0.22);
}

.portrait-core span {
  transform: rotate(-45deg);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text-inverse);
}

.portrait-orbit img {
  position: relative;
  z-index: 2;
}

.mini-node {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1.4rem;
  aspect-ratio: 1;
  border-radius: 5px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  margin: -0.7rem 0 0 -0.7rem;
  z-index: 1;
  background: linear-gradient(135deg, #5DFFCE, #44A1FF, #F9BFFF, #FFC4A1, #5DFFCE);
  background-size: 300% 300%;
  animation: orbit-spin linear infinite, node-gradient ease-in-out infinite, node-glow ease-in-out infinite;
}

.mini-node:nth-child(2) { --r: 8.5rem; animation-duration: 28s, 10s, 10s; animation-delay: 0s,    0s,    0s;    }
.mini-node:nth-child(3) { --r: 9.2rem; animation-duration: 36s, 10s, 10s; animation-delay: -9s,  -2.5s, -2.5s;  }
.mini-node:nth-child(4) { --r: 8rem;   animation-duration: 22s, 10s, 10s; animation-delay: -11s, -5s,   -5s;    }
.mini-node:nth-child(5) { --r: 9.6rem; animation-duration: 42s, 10s, 10s; animation-delay: -31.5s,-7.5s,-7.5s;  }

@keyframes node-gradient {
  0%   { background-position: 0%   50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0%   50%; }
}

@keyframes node-glow {
  0%   { box-shadow: 0 0 10px 2px rgba(93,  255, 206, 0.6); }
  25%  { box-shadow: 0 0 10px 2px rgba(68,  161, 255, 0.6); }
  50%  { box-shadow: 0 0 10px 2px rgba(249, 191, 255, 0.6); }
  75%  { box-shadow: 0 0 10px 2px rgba(255, 196, 161, 0.6); }
  100% { box-shadow: 0 0 10px 2px rgba(93,  255, 206, 0.6); }
}

@keyframes orbit-spin {
  from { transform: rotate(0deg)   translateX(var(--r)) rotate(0deg);   }
  to   { transform: rotate(360deg) translateX(var(--r)) rotate(360deg); }
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.stat {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.03);
}

.stat strong {
  display: block;
  font-size: var(--text-lg);
  font-family: var(--font-display);
}

.stat span {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}


/* ─── TIMELINE ─── */
.timeline {
  padding: clamp(1.5rem, 2vw, 2.2rem);
}

.timeline-list {
  display: grid;
  gap: var(--space-4);
  position: relative;
}

.timeline-list::before {
  content: '';
  position: absolute;
  left: calc(0.95rem / 2);
  top: calc(0.35rem + 0.95rem);
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-border) 20%, transparent 100%);
}

.timeline-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  align-items: start;
  padding-bottom: var(--space-4);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-bullet {
  width: 0.95rem;
  aspect-ratio: 1;
  border-radius: 0.35rem;
  margin-top: 0.35rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  box-shadow: 0 0 24px rgba(93, 255, 206, 0.22);
}

.timeline-item small {
  display: block;
  color: var(--color-text-faint);
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: var(--text-xs);
}

.timeline-item h3 {
  font-size: var(--text-lg);
  margin-bottom: 0.35rem;
}

.timeline-item p {
  color: var(--color-text-muted);
}


/* ─── CONTACT ─── */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-4);
}

.contact-panel {
  padding: clamp(1.4rem, 2vw, 2rem);
  position: relative;
  overflow: hidden;
}

.contact-rings {
  position: absolute;
  right: -2rem;
  bottom: -2rem;
  width: 11rem;
  height: 11rem;
  border-radius: 5px;
  overflow: hidden;
  transform: rotate(18deg);
  pointer-events: none;
  animation: rings-hue 20s linear infinite;
  animation-delay: -4s;
}

.contact-panel p,
.contact-panel li {
  color: var(--color-text-muted);
}

.contact-list {
  list-style: none;
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.contact-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}


/* ─── FOOTER ─── */
footer.site-footer {
  padding-block: var(--space-10) var(--space-16);
  border-top: 1px solid var(--color-divider);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  color: var(--color-text-faint);
  font-size: var(--text-sm);
}


/* ─── PROJECT PAGES ─── */
.ph-title-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-6);
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.15s, gap 0.15s;
}
.back-btn:hover {
  color: var(--color-text);
  gap: var(--space-3);
}

.project-hero {
  padding-block: clamp(3rem, 6vw, 5rem) clamp(2rem, 4vw, 3rem);
}

.project-hero-inner {
  display: grid;
  gap: var(--space-10);
}

.project-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  letter-spacing: -0.05em;
  line-height: 1.0;
  font-weight: 700;
}

.project-subtitle {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  max-width: 64ch;
  margin-top: var(--space-4);
}

.project-intro-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-top: var(--space-6);
}

.meta-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  backdrop-filter: blur(12px);
}

.meta-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.meta-value {
  font-size: var(--text-sm);
  font-weight: 500;
}

.meta-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin-block: clamp(2rem, 4vw, 3rem);
}

.project-section {
  padding-block: clamp(var(--space-12), 5vw, var(--space-20));
}

.section-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: var(--space-8);
}


/* ─── PROJECT HERO EDITORIAL LAYOUT ─── */
.ph-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
}

.ph-detail-block .project-subtitle {
  margin-top: 0;
}

.ph-meta {
  margin-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
}

.ph-meta-row {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: var(--space-4);
  align-items: start;
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}

.ph-meta dt {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-faint);
  padding-top: 3px;
}

.ph-meta dd {
  font-size: var(--text-sm);
  font-weight: 500;
  margin: 0;
}

.ph-disciplines {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0;
}

.ph-disciplines span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.ph-disciplines span:not(:last-child)::after {
  content: "·";
  margin: 0 0.55rem;
  color: var(--color-text-faint);
}

@media (max-width: 720px) {
  .ph-layout {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}


/* ─── VIDEO PLAYER ─── */
.video-main {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: #000;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.video-main video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.video-main video[hidden] {
  display: none;
}

.video-main iframe,
.video-main .yt-placeholder {
  width: 100%;
  height: 100%;
  display: block;
  border: none;
  aspect-ratio: auto;
}

.video-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-3);
  width: 100%;
  height: 100%;
  background: linear-gradient(160deg, rgba(68, 161, 255, 0.08), rgba(93, 255, 206, 0.06));
  color: var(--color-text-faint);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.play-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.06);
}

.play-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--color-text-muted);
  margin-left: 3px;
}

.video-thumbs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.video-thumb {
  aspect-ratio: 16/9;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 0;
  text-align: left;
  background: rgba(255, 255, 255, 0.04);
  transition: border-color var(--transition), transform var(--transition);
}

.video-thumb:hover { border-color: rgba(255, 255, 255, 0.35); transform: translateY(-3px); }
.video-thumb.active { border-color: var(--color-accent); box-shadow: 0 0 0 2px rgba(68, 161, 255, 0.3); }

.video-thumb .vt-inner {
  flex: 1;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, rgba(68, 161, 255, 0.08), rgba(93, 255, 206, 0.05));
  min-height: 0;
}

.video-thumb .vt-inner canvas {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-thumb .vt-inner.vt-loading svg { fill: var(--color-text-faint); }

.video-thumb .vt-label {
  display: block;
  padding: 0.3rem 0.5rem;
  font-size: 0.65rem;
  color: var(--color-text-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border-top: 1px solid var(--color-border);
  background: rgba(0, 0, 0, 0.2);
}

.video-thumb.active .vt-label { color: var(--color-accent); }


/* ─── SECTION LAYOUTS ─── */
.s1-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-10);
  align-items: start;
}

.s1-text { padding-top: var(--space-2); }

.s1-text h2,
.s2-text h2,
.s3-text h2,
.s-center-text h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.s1-text p,
.s2-text p,
.s3-text p,
.s-center-text p {
  color: var(--color-text-muted);
  line-height: 1.75;
}

.s2-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: var(--space-10);
  align-items: start;
}

.s2-text { padding-top: var(--space-2); }

.s3-video {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.s3-video video {
  width: 100%;
  height: auto;
  display: block;
}

.s3-text {
  max-width: 60ch;
  margin-inline: auto;
  text-align: center;
  margin-top: var(--space-10);
}


/* ─── PHOTO GRID ─── */
.photo-grid-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  margin-top: var(--space-12);
}

.photo-grid {
  columns: 4;
  column-gap: 10px;
}

.photo-grid.cols-5 { columns: 5; }

.photo-item {
  break-inside: avoid;
  margin-bottom: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  display: block;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.photo-item:hover {
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.photo-item img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.photo-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.photo-item:nth-child(5n+1) { background: linear-gradient(160deg, rgba(68, 161, 255, 0.12), rgba(93, 255, 206, 0.06)); }
.photo-item:nth-child(5n+2) { background: linear-gradient(160deg, rgba(249, 191, 255, 0.12), rgba(68, 161, 255, 0.06)); }
.photo-item:nth-child(5n+3) { background: linear-gradient(160deg, rgba(93, 255, 206, 0.12), rgba(249, 191, 255, 0.06)); }
.photo-item:nth-child(5n+4) { background: linear-gradient(160deg, rgba(68, 161, 255, 0.08), rgba(249, 191, 255, 0.1)); }
.photo-item:nth-child(5n+5) { background: linear-gradient(160deg, rgba(93, 255, 206, 0.08), rgba(68, 161, 255, 0.1)); }


/* ─── LIGHTBOX ─── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(5, 6, 14, 0.94);
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(12px);
}

.lightbox.open { display: flex; }

.lightbox-inner {
  position: relative;
  max-width: min(92vw, 1200px);
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-inner img {
  display: block;
  max-width: min(92vw, 1200px);
  max-height: 88vh;
  width: auto;
  height: auto;
  border-radius: var(--radius-lg);
  object-fit: contain;
  box-shadow: 0 32px 100px rgba(0, 0, 0, 0.7);
}

.lightbox-placeholder {
  width: min(80vw, 900px);
  padding: 6rem 3rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-4);
  color: var(--color-text-faint);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lightbox-placeholder svg { opacity: 0.4; }

.lightbox-caption {
  position: absolute;
  bottom: -2.4rem;
  left: 0;
  right: 0;
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.lightbox-close {
  position: absolute;
  top: -3rem;
  right: 0;
  font-size: 1.6rem;
  color: var(--color-text-muted);
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition);
}

.lightbox-close:hover { color: var(--color-text); }

.lightbox-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  color: var(--color-text-muted);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-text);
}

.lightbox-prev { left: 1.5rem; }
.lightbox-next { right: 1.5rem; }

.lightbox-nav svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}


/* ─── HALF-SCREEN LAYOUT (video / carousel / image + text, 50 / 50) ─── */
.s-half-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
}

.s-half-media {
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.s-half-media video,
.s-half-media iframe {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border: none;
}

.s-half-text { padding-block: var(--space-2); }


/* ─── CAROUSEL ─── */
.carousel-outer { position: relative; }

.carousel-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.carousel-track {
  display: flex;
  transition: transform 400ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.carousel-img {
  min-width: 100%;
  flex-shrink: 0;
  display: block;
  object-fit: contain;
  aspect-ratio: 16/9;
  background: var(--color-surface);
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  width: 2.2rem;
  height: 2.2rem;
  display: grid;
  place-items: center;
  cursor: pointer;
  color: white;
  z-index: 2;
  transition: background var(--transition);
  font-size: 0.8rem;
}

.carousel-btn:hover { background: rgba(0, 0, 0, 0.8); }
.carousel-btn.prev  { left: 0.75rem; }
.carousel-btn.next  { right: 0.75rem; }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: var(--space-3);
}

.carousel-dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--color-border);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background var(--transition), transform var(--transition);
}

.carousel-dot.active { background: var(--color-text); transform: scale(1.35); }


/* ─── YOUTUBE PLAYER ─── */
.yt-placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  cursor: pointer;
  background: #000;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.yt-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.8;
  transition: opacity var(--transition);
}

.yt-placeholder:hover img { opacity: 1; }

.yt-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.65);
  border: none;
  border-radius: 50%;
  width: 4.5rem;
  height: 4.5rem;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  pointer-events: none;
}

.yt-placeholder:hover .yt-play-btn {
  background: rgba(200, 0, 0, 0.85);
  transform: translate(-50%, -50%) scale(1.08);
}

.yt-play-btn svg { margin-left: 4px; }


/* ─── YOUTUBE GRID ─── */
.yt-grid {
  columns: 5;
  column-gap: 10px;
  margin-top: var(--space-8);
}

.yt-grid-item {
  break-inside: avoid;
  margin-bottom: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  overflow: hidden;
  cursor: pointer;
  display: block;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.yt-grid-item:hover {
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.yt-grid-item img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}


/* ─── IMAGE GRIDS ─── */
.img-grid {
  display: grid;
  gap: 10px;
}

.img-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.img-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.img-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.img-grid img,
.img-grid .img-ph {
  width: 100%;
  display: block;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  object-fit: cover;
}

.img-grid.ratio-169 img,
.img-grid.ratio-169 .img-ph { aspect-ratio: 16/9; }

.img-grid.ratio-43 img,
.img-grid.ratio-43 .img-ph { aspect-ratio: 4/3; }

.img-ph {
  background: linear-gradient(160deg, rgba(68, 161, 255, 0.09), rgba(93, 255, 206, 0.07));
}


/* ─── FULL-WIDTH MEDIA BLOCK ─── */
.s-full-media {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.s-full-media img,
.s-full-media video,
.s-full-media iframe {
  width: 100%;
  display: block;
  border: none;
}

.s-full-media video,
.s-full-media iframe { aspect-ratio: 16/9; height: auto; }

.s-center-text {
  max-width: 66ch;
  margin-inline: auto;
  text-align: center;
  margin-top: var(--space-10);
}


/* ─── NEXT PROJECT CTA ─── */
.next-project {
  padding-block: clamp(var(--space-12), 5vw, var(--space-20));
  text-align: center;
}

.next-project h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  letter-spacing: -0.04em;
  margin-bottom: var(--space-6);
}

.next-project p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}


/* ─── VISUAL ENHANCEMENTS ─── */

/* Noise texture overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.09;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 980px) {
  .hero-grid,
  .about-layout,
  .contact-grid,
  .s1-layout,
  .s2-layout {
    grid-template-columns: 1fr;
  }

  .hero-card {
    min-height: 23rem;
  }

  .project.large,
  .project.tall,
  .project.medium,
  .project.wide,
  .project.small {
    grid-column: span 12;
  }

  .section-heading {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: 1fr 1fr;
  }

  .photo-grid { columns: 3; }
  .photo-grid.cols-5 { columns: 3; }
  .s-half-layout { grid-template-columns: 1fr; }
  .img-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .img-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .yt-grid { columns: 3; }
}

@media (max-width: 720px) {
  /* Supprime le backdrop-filter qui empêche position:fixed de couvrir la viewport */
  header {
    backdrop-filter: none;
    background: transparent;
  }

  /* ── Burger + brand flottent au-dessus de l'overlay ── */
  .burger-btn {
    display: flex;
    position: relative;
    z-index: 3;
  }

  .brand {
    position: relative;
    z-index: 3;
  }

  .nav {
    flex-direction: row;
    align-items: center;
    padding-block: 0.75rem;
  }

  /* ── Overlay plein écran ── */
  .nav-links {
    position: fixed;
    inset: 0;
    z-index: 2;
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    padding: 5rem var(--space-6) var(--space-8);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0s linear 0.25s;
  }

  .nav-open .nav-links {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 0.25s ease, visibility 0s linear 0s;
  }

  /* ── Liens de navigation — grands, alignés à gauche ── */
  .nav-links a.pill {
    font-family: var(--font-display);
    font-size: clamp(2rem, 9vw, 2.8rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    padding: var(--space-5) 0;
    border: none;
    border-bottom: 1px solid var(--color-border);
    background: none;
    border-radius: 0;
    text-align: left;
    width: 100%;
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0s, transform 0s, color 0.15s;
  }

  .nav-links a.pill:first-child {
    border-top: 1px solid var(--color-border);
  }

  .nav-links a.pill.skip-link {
    background: none;
    color: inherit;
  }

  .nav-open .nav-links a.pill {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), color 0.15s;
  }

  .nav-open .nav-links a.pill:nth-child(1) { transition-delay: 0.06s; }
  .nav-open .nav-links a.pill:nth-child(2) { transition-delay: 0.12s; }
  .nav-open .nav-links a.pill:nth-child(3) { transition-delay: 0.18s; }
  .nav-open .nav-links a.pill:nth-child(4) { transition-delay: 0.24s; }

  .nav-links a.pill:hover,
  .nav-links a.pill:focus-visible {
    transform: none;
    color: var(--color-text-muted);
  }

  /* ── Bouton langue — en bas ── */
  .nav-links .lang-toggle {
    margin-top: var(--space-8);
    font-size: var(--text-sm);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0s, transform 0s;
  }

  .nav-open .nav-links .lang-toggle {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.4s ease, transform 0.4s ease;
    transition-delay: 0.30s;
  }

  /* ── Reste du mobile ── */
  h1 {
    max-width: none;
    font-size: clamp(2.5rem, 8vw, 3.5rem);
  }

  .hero {
    min-height: auto;
    padding-top: var(--space-8);
  }

  .stats {
    grid-template-columns: 1fr;
  }

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

  footer.site-footer {
    padding-block: var(--space-6);
  }

  .footer-row {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

@media (max-width: 600px) {
  :root { --content: calc(100vw - 2.5rem); }

  .video-thumbs { grid-template-columns: repeat(3, 1fr); }
  .photo-grid { columns: 2; }
  .photo-grid.cols-5 { columns: 2; }
  .yt-grid { columns: 2; }
  .project-intro-meta { flex-direction: column; align-items: flex-start; }
}

/* ─── Hero card shapes — responsive ─── */
@media (max-width: 720px) {
  .shape-diamond { width: 7rem; height: 7rem; }
  .shape-square  { width: 4rem; height: 4rem; top: 3rem; right: 2rem; }
  .shape-rings   { width: 7rem; height: 7rem; top: 9rem; }
  .shape-circ    { width: 15rem; height: 15rem; left: -5rem; bottom: -5rem; }
  .shape-footer  { width: 8rem; }
  .img-cottos    { object-position: center center !important; }
}

@media (max-width: 480px) {
  .shape-diamond { width: 5.5rem; height: 5.5rem; }
  .shape-square  { width: 3.5rem; height: 3.5rem; top: 2.5rem; right: 1.5rem; }
  .shape-rings   { width: 6rem; height: 6rem; top: 9rem; }
  .shape-circ    { width: 12rem; height: 12rem; left: -4rem; bottom: -4rem; }
  .shape-footer  { width: 6.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .reveal,
  .reveal.is-visible,
  .btn,
  .pill,
  .project,
  .video-thumb,
  .photo-item {
    transition: none;
    transform: none;
    opacity: 1;
  }
}