/* ARLE : une matière noire, une seule source de lumière. */

@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
  src: url(/fonts/archivo.woff2) format('woff2');
}

@font-face {
  font-family: 'Unbounded';
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url(/fonts/unbounded.woff2) format('woff2');
}

:root {
  --ground: #0d0d0d;
  --white: #f1f1ee;
  --grey: #9a9a96;
  --grey-dim: #6a6a67;
  --line: rgb(241 241 238 / .1);
  --sans: 'Archivo', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --display: 'Unbounded', 'Archivo', system-ui, sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --lx: 30vw;
  --ly: 20vh;
  --glow: 0;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { background: var(--ground); scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scrollbar-color: #2e2e2c var(--ground); }
body { margin: 0; color: var(--white); font: 400 1.0625rem/1.6 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
::selection { background: var(--white); color: var(--ground); }
a { color: inherit; }
:focus-visible { outline: 1px solid var(--white); outline-offset: 5px; }

/* La flaque de lumière suit la source */
.light {
  position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: var(--glow);
  background:
    radial-gradient(circle at var(--lx) var(--ly), rgb(255 255 255 / .16), rgb(255 255 255 / .05) 18vmax, transparent 46vmax),
    radial-gradient(circle at var(--lx) var(--ly), rgb(255 255 255 / .5), transparent 1.2vmax);
}
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: .07;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
.page { position: relative; z-index: 1; }

.top { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.5rem clamp(1.25rem, 4vw, 3rem); }
.mark { font: 800 1.05rem/1 var(--display); letter-spacing: .16em; text-decoration: none; }
.top nav { display: flex; gap: clamp(1rem, 3vw, 2.5rem); font: 500 .8125rem/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--grey); }
.top nav a { text-decoration: none; transition: color .3s; }
.top nav a:hover { color: var(--white); }

/* Premier écran : le relief */
.hero { min-height: calc(100svh - 4.5rem); display: grid; align-content: center; padding: 0 clamp(1.25rem, 4vw, 3rem) 4rem; }
.relief { position: relative; margin: 0; font: 900 clamp(4.2rem, 19vw, 19rem)/1 var(--display); letter-spacing: -.04em; }
.relief span { display: block; }
.relief .cast { position: absolute; inset: 0; color: #0a0a0a; }
.relief .face {
  position: relative; color: transparent; -webkit-background-clip: text; background-clip: text;
  background-image: radial-gradient(circle at var(--fx, 30%) var(--fy, 20%), #fbfbf8 0, #c8c8c3 18%, #5a5a56 55%, #383836 90%);
}
.hero p { margin: clamp(2rem, 5vw, 3.5rem) 0 0; max-width: 38rem; font: 500 clamp(1.25rem, 2.3vw, 1.75rem)/1.35 var(--sans); letter-spacing: -.01em; }
.hero p span { color: var(--grey); }

section { padding: clamp(5rem, 12vw, 9rem) clamp(1.25rem, 4vw, 3rem); }
h2 { margin: 0 0 clamp(3rem, 7vw, 5rem); font: 800 clamp(2.6rem, 6.5vw, 5.5rem)/.95 var(--sans); font-stretch: 112%; letter-spacing: -.03em; max-width: 16ch; text-wrap: balance; }
h2 span { color: var(--grey-dim); }
h2.label { margin-bottom: 2rem; font: 700 .8125rem/1.4 var(--sans); font-stretch: 100%; letter-spacing: .18em; text-transform: uppercase; color: var(--grey); max-width: none; }

/* Les applications : trois reliefs du même bloc */
.apps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.5rem, 4vw, 3.5rem); align-items: start; }
.app { text-decoration: none; display: grid; gap: 1.75rem; align-content: start; min-width: 0; }
.tile {
  --sx: 20px; --sy: 30px; --hx: -1px; --hy: -1px;
  width: 100%; aspect-ratio: 1; border-radius: 22%; position: relative; display: grid; place-items: center;
  background: linear-gradient(145deg, #191919, #101010);
  box-shadow:
    var(--sx) var(--sy) 60px -10px rgb(0 0 0 / .95),
    calc(var(--sx) * .3) calc(var(--sy) * .3) 18px rgb(0 0 0 / .6),
    inset var(--hx) var(--hy) 0 rgb(255 255 255 / .14),
    inset calc(var(--hx) * -1) calc(var(--hy) * -1) 0 rgb(0 0 0 / .8);
  transition: transform .8s var(--ease);
}
.tile .glint { position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: radial-gradient(circle at var(--gx, 30%) var(--gy, 20%), rgb(255 255 255 / .16), transparent 55%); }
.tile img { width: 46%; height: auto; border-radius: 22%; filter: grayscale(var(--gs, 1)) brightness(calc(1 - var(--gs, 1) * .08)); box-shadow: 0 0 0 1px rgb(255 255 255 / .06), calc(var(--sx) * .12) calc(var(--sy) * .12) 10px rgb(0 0 0 / .7); transition: filter .3s linear; }
a.app:hover .tile, a.app:focus-visible .tile { transform: translateY(-6px); }
a.app:hover .tile img, a.app:focus-visible .tile img { filter: none; }
.tile .engrave { font: 900 clamp(2.5rem, 6vw, 5rem)/1 var(--sans); font-stretch: 125%; color: #121212; text-shadow: calc(var(--hx) * 1px) calc(var(--hy) * 1px) 0 rgb(255 255 255 / .1), calc(var(--hx) * -1.5px) calc(var(--hy) * -1.5px) 1px rgb(0 0 0 / .9); }
.meta b { display: block; font: 800 1.6rem/1.1 var(--sans); font-stretch: 112%; letter-spacing: -.01em; margin-bottom: .4rem; }
.meta p { margin: 0 0 .9rem; color: var(--grey); max-width: 32ch; }
.meta small { font: 500 .75rem/1 var(--sans); letter-spacing: .18em; text-transform: uppercase; color: var(--grey); }
.app.dark .meta b { color: var(--grey); }

/* Le studio : la phrase s'éclaire là où passe la lumière */
.statement p.lit {
  margin: 0; max-width: 22ch; font: 800 clamp(2.2rem, 5.6vw, 5rem)/1.04 var(--sans); font-stretch: 112%; letter-spacing: -.03em;
  color: #c9c9c5; -webkit-background-clip: text; background-clip: text;
  background-image: radial-gradient(circle at var(--px, 20%) var(--py, 30%), #ffffff 0, #d8d8d4 12%, #8f8f8b 34%);
}
.js .statement p.lit { color: transparent; }
.pillars { margin-top: clamp(3rem, 7vw, 5rem); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; border-top: 1px solid var(--line); padding-top: 1.5rem; }
.pillars b { display: block; font: 700 .8125rem/1.4 var(--sans); letter-spacing: .16em; text-transform: uppercase; margin-bottom: .5rem; }
.pillars span { color: var(--grey); font-size: 1rem; }

.contact { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2rem 4rem; align-items: end; }
.contact h2 { margin: 0; }
.contact .lines { display: grid; gap: .35rem; font: 600 clamp(1.3rem, 2.4vw, 1.9rem)/1.35 var(--sans); }
.contact .lines a { justify-self: start; text-decoration: none; background: linear-gradient(currentColor, currentColor) 0 100% / 0 2px no-repeat; transition: background-size .6s var(--ease); }
.contact .lines a:hover, .contact .lines a:focus-visible { background-size: 100% 2px; }
.contact address { font-style: normal; color: var(--grey); }

footer { padding: 2rem clamp(1.25rem, 4vw, 3rem) 2.5rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem 2rem; font-size: .8125rem; color: var(--grey-dim); border-top: 1px solid var(--line); }
footer a { text-decoration: none; border-bottom: 1px solid var(--grey-dim); }
footer a:hover { color: var(--white); border-color: var(--white); }

/* Mentions légales */
.legal { padding: clamp(3rem, 8vw, 6rem) clamp(1.25rem, 4vw, 3rem) clamp(3rem, 8vw, 5rem); max-width: 62rem; }
.legal h1 { margin: 0 0 clamp(2.5rem, 6vw, 4rem); font: 800 clamp(2.6rem, 6.5vw, 5rem)/.95 var(--sans); font-stretch: 112%; letter-spacing: -.03em; }
.legal section { padding: 1.5rem 0 1.75rem; border-top: 1px solid var(--line); }
.legal h2 { margin: 0 0 1rem; font: 700 .8125rem/1.4 var(--sans); font-stretch: 100%; letter-spacing: .18em; text-transform: uppercase; color: var(--grey); max-width: none; }
.legal p { margin: 0 0 .6rem; max-width: 65ch; }
.legal a { text-underline-offset: .2em; text-decoration-thickness: 1px; }

@media (prefers-reduced-motion: no-preference) {
  .js .hero p { opacity: 0; transform: translateY(16px); }
  .play .hero p { animation: rise 1.4s var(--ease) 1.6s forwards; }
  @keyframes rise { to { opacity: 1; transform: none; } }
}

@media (max-width: 820px) {
  .apps { grid-template-columns: 1fr; max-width: 24rem; }
  .app { grid-template-columns: 7.5rem 1fr; align-items: center; gap: 1.25rem; }
  .contact { grid-template-columns: 1fr; }
  .relief { font-size: 22vw; }
  .pillars { grid-template-columns: 1fr 1fr; }
  .top nav a.section { display: none; }
}