/* ==========================================================
   ALEX ROHO — Portfolio vidéaste
   DA "Graphite" : gris profonds en couches, accent amber
   désaturé, grain 16mm animé, fond mouvant au scroll.
   ========================================================== */

:root {
  --g-900: #131417;   /* hero, footer */
  --g-800: #1b1d21;   /* fond courant */
  --g-700: #24262b;   /* surfaces, cartes */
  --g-600: #34373e;   /* bordures, séparateurs */
  --ink:   #ededea;   /* texte principal */
  --ink-2: #9a9ca3;   /* texte secondaire */
  --amber: #d9973b;   /* accent unique */

  --font-display: "Bebas Neue", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --ease: cubic-bezier(.22, .8, .3, 1);
  --dur: 700ms;

  --pad: clamp(20px, 5vw, 72px);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--g-800);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Le fond vivant : une couche fixe dont la couleur est
   interpolée en JS selon la section traversée. */
#bg-layer {
  position: fixed;
  inset: 0;
  z-index: -2;
  background: var(--g-800);
  transition: background-color 900ms linear;
}

/* Grain 16mm temps réel */
#grain {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  opacity: .07;
  mix-blend-mode: overlay;
}

::selection { background: var(--amber); color: var(--g-900); }

:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; }

a { color: inherit; text-decoration: none; }
img, video, iframe { display: block; max-width: 100%; }

/* ---------- Curseur custom ---------- */
#cursor {
  position: fixed;
  z-index: 1000;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--ink);
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: width .25s var(--ease), height .25s var(--ease),
              background-color .25s var(--ease), opacity .25s;
  mix-blend-mode: difference;
}
#cursor.is-hover { width: 42px; height: 42px; background: var(--amber); }
@media (hover: none), (prefers-reduced-motion: reduce) {
  #cursor { display: none; }
}

/* ---------- Transition de page (coupe franche) ---------- */
#fade {
  position: fixed;
  inset: 0;
  z-index: 1001;
  background: var(--g-900);
  pointer-events: none;
  opacity: 0;
  transition: opacity 260ms linear;
}
body.is-leaving #fade { opacity: 1; }
body.is-entering #fade { opacity: 1; transition: none; }

/* ---------- Header ---------- */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--pad);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  background: linear-gradient(to bottom, rgba(19,20,23,.85), transparent);
}
.logo {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: .12em;
  line-height: 1;
}
.logo em { color: var(--amber); font-style: normal; }

nav { display: flex; gap: clamp(14px, 3vw, 36px); }
nav a {
  position: relative;
  padding: 4px 0;
  color: var(--ink-2);
  transition: color .3s;
}
nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
nav a:hover, nav a.is-active { color: var(--ink); }
nav a:hover::after, nav a.is-active::after { transform: scaleX(1); }

#tc {
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}
#tc b { color: var(--amber); font-weight: 400; }

/* Menu burger mobile */
#burger { display: none; background: none; border: 0; color: var(--ink); font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; cursor: pointer; }
@media (max-width: 760px) {
  #tc { display: none; }
  #burger { display: block; }
  nav {
    position: fixed;
    inset: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    background: rgba(19,20,23,.97);
    font-size: 18px;
    transform: translateY(-100%);
    transition: transform .45s var(--ease);
  }
  nav.is-open { transform: translateY(0); }
}

/* ---------- Sections génériques ---------- */
section {
  padding: clamp(80px, 12vh, 140px) var(--pad);
  max-width: 1400px;
  margin: 0 auto;
}
.eyebrow {
  display: inline-block;
  color: var(--amber);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  margin-bottom: 22px;
}
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: .95;
  letter-spacing: .015em;
}
h2 { font-size: clamp(42px, 6vw, 84px); margin-bottom: 36px; }
h3 { font-size: clamp(24px, 3vw, 38px); }
p.lead { font-size: clamp(16px, 1.6vw, 19px); color: var(--ink); max-width: 60ch; }
p.muted { color: var(--ink-2); max-width: 62ch; }

/* Apparition au scroll */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Hero (accueil) ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  max-width: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 var(--pad);
  overflow: hidden;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero-media video, .hero-media .media-placeholder {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(.42) saturate(.85);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(72px, 16vw, 260px);
  line-height: .88;
  letter-spacing: .01em;
}
.hero-title span { display: block; }
.hero-title .l2 { color: transparent; -webkit-text-stroke: 1.5px var(--ink); padding-left: .6em; }
.hero-sub {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  color: var(--ink-2);
  font-size: 13px;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.hero-sub b { color: var(--amber); font-weight: 400; }
.hero-scroll {
  position: absolute;
  bottom: 26px; left: var(--pad);
  color: var(--ink-2);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
}
.hero-scroll::after {
  content: "";
  display: block;
  width: 1px; height: 40px;
  margin-top: 10px;
  background: linear-gradient(var(--amber), transparent);
  animation: drop 2.2s var(--ease) infinite;
}
@keyframes drop {
  0% { transform: scaleY(0); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: top; }
  56% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- Grille projets ---------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 48px;
}
.filters button {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-2);
  background: none;
  border: 1px solid var(--g-600);
  padding: 8px 18px;
  cursor: pointer;
  transition: all .3s var(--ease);
}
.filters button:hover { color: var(--ink); border-color: var(--ink-2); }
.filters button.is-active {
  color: var(--g-900);
  background: var(--amber);
  border-color: var(--amber);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(420px, 100%), 1fr));
  gap: 40px 32px;
}
.card {
  display: block;
  transition: opacity .4s var(--ease), transform .4s var(--ease);
}
.card.is-hidden { display: none; }
.card .thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--g-700);
  border: 1px solid var(--g-600);
}
.card .thumb .ph {
  position: absolute;
  inset: 0;
  transition: transform 1.1s var(--ease);
}
.card:hover .thumb .ph { transform: scale(1.045); }
.card .thumb img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(.9);
  transition: transform 1.1s var(--ease);
}
.card:hover .thumb img { transform: scale(1.045); }
.card .thumb .tc-corner {
  position: absolute;
  top: 10px; right: 12px;
  font-size: 11px;
  color: var(--ink-2);
  letter-spacing: .08em;
}
.card .meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-top: 14px;
}
.card .meta h3 { font-size: clamp(22px, 2.4vw, 30px); }
.card .meta .cat {
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--amber);
  white-space: nowrap;
}
.card .role {
  color: var(--ink-2);
  font-size: 12.5px;
  margin-top: 4px;
}

/* Placeholder de vignette (à remplacer par tes frames) */
.ph {
  display: grid;
  place-items: center;
  background:
    radial-gradient(120% 120% at 20% 10%, rgba(217,151,59,.14), transparent 55%),
    linear-gradient(155deg, var(--g-700), var(--g-900));
  color: var(--g-600);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
}

/* ---------- Page projet ---------- */
.project-head { padding-top: 140px; }
.project-head .backlink { color: var(--ink-2); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; }
.project-head .backlink:hover { color: var(--amber); }
.project-head h1 { font-size: clamp(52px, 9vw, 130px); margin: 18px 0 8px; }
.spec {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--g-600);
  border: 1px solid var(--g-600);
  margin: 40px 0;
}
.spec div { background: var(--g-800); padding: 16px 18px; }
.spec dt { color: var(--ink-2); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 6px; }
.spec dd { font-size: 14px; }
.player {
  aspect-ratio: 16 / 9;
  background: var(--g-900);
  border: 1px solid var(--g-600);
}
.player iframe { width: 100%; height: 100%; border: 0; }
.stills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 48px;
}
.stills figure { aspect-ratio: 16/9; overflow: hidden; border: 1px solid var(--g-600); }
.stills .ph { height: 100%; }
.stills img { width: 100%; height: 100%; object-fit: cover; }
.project-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 80px;
  padding-top: 32px;
  border-top: 1px solid var(--g-600);
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 32px);
}
.project-nav a:hover { color: var(--amber); }

/* ---------- À propos ---------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(260px, 420px) 1fr;
  gap: clamp(32px, 6vw, 90px);
  align-items: start;
}
.portrait {
  position: relative;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--g-600);
  overflow: hidden;
}
.portrait .ph { height: 100%; }
.portrait img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
@media (max-width: 820px) { .about-grid { grid-template-columns: 1fr; } }
.about-list { margin-top: 40px; display: grid; gap: 14px; }
.about-list div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--g-600);
  font-size: 13.5px;
}
.about-list dt { color: var(--amber); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; padding-top: 2px; }

/* ---------- Services ---------- */
.svc {
  display: grid;
  gap: 1px;
  background: var(--g-600);
  border: 1px solid var(--g-600);
}
.svc article {
  background: var(--g-800);
  padding: clamp(28px, 4vw, 52px);
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(20px, 4vw, 60px);
  transition: background .4s;
}
.svc article:hover { background: var(--g-700); }
.svc h3 span { display: block; color: var(--ink-2); font-family: var(--font-mono); font-size: 12px; letter-spacing: .14em; margin-top: 10px; text-transform: uppercase; }
.svc ul { list-style: none; display: grid; gap: 10px; color: var(--ink-2); font-size: 13.5px; }
.svc ul li::before { content: "— "; color: var(--amber); }
@media (max-width: 720px) { .svc article { grid-template-columns: 1fr; } }

/* ---------- Contact ---------- */
.contact-wrap { text-align: left; }
.big-mail {
  font-family: var(--font-display);
  font-size: clamp(34px, 6.5vw, 96px);
  line-height: 1;
  display: inline-block;
  margin: 20px 0 40px;
  border-bottom: 3px solid var(--amber);
  transition: color .3s;
}
.big-mail:hover { color: var(--amber); }
.socials { display: flex; gap: 26px; font-size: 13px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.socials a:hover { color: var(--amber); }

/* ---------- CTA bandeau ---------- */
.cta-band {
  max-width: none;
  background: var(--g-900);
  border-top: 1px solid var(--g-600);
  border-bottom: 1px solid var(--g-600);
  text-align: center;
}
.cta-band h2 { margin-bottom: 20px; }
.btn {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--g-900);
  background: var(--amber);
  padding: 14px 34px;
  transition: transform .3s var(--ease), background .3s;
}
.btn:hover { background: var(--ink); transform: translateY(-2px); }

/* ---------- Footer ---------- */
footer {
  padding: 40px var(--pad);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  justify-content: space-between;
  color: var(--ink-2);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
footer .amber { color: var(--amber); }