/* ===== TOKENS ===== */
:root{
  --abyss: #0C1A24;
  --panel: #142631;
  --amber: #E8A33D;
  --coral: #FF7A59;
  --foam: #F1ECE0;
  --sea:  #8FA3AD;

  --display: 'Instrument Serif', Georgia, serif;
  --body: 'Inter', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;

  --container: min(1180px, 92vw);
  --ease: cubic-bezier(.22,1,.36,1);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body{
  margin:0;
  background: var(--abyss);
  color: var(--foam);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}

a{ color: inherit; text-decoration: none; }
h1,h2,h3{ font-family: var(--display); font-weight: 400; margin: 0; }
p{ margin: 0; color: var(--sea); line-height: 1.6; }

.eyebrow{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 14px;
}

.brand{
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: .01em;
  color: var(--foam);
}

/* ===== BUTTONS ===== */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 100px;
  font-family: var(--body);
  font-weight: 500;
  font-size: 15px;
  transition: transform .35s var(--ease), background .3s, border-color .3s, color .3s;
}
.btn-primary{
  background: linear-gradient(135deg, var(--amber), var(--coral));
  color: #14100a;
}
.btn-primary:hover{ transform: translateY(-2px); }
.btn-ghost{
  border: 1px solid rgba(241,236,224,.28);
  color: var(--foam);
}
.btn-ghost:hover{ border-color: var(--foam); }

/* ===== NAV ===== */
#nav{
  position: fixed; top:0; left:0; right:0; z-index: 50;
  padding: 22px 0;
  transition: background .4s var(--ease), padding .4s var(--ease), border-color .4s;
  border-bottom: 1px solid transparent;
}
#nav.scrolled{
  background: rgba(12,26,36,.82);
  backdrop-filter: blur(10px);
  padding: 14px 0;
  border-color: rgba(241,236,224,.08);
}
.nav-inner{
  width: var(--container); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-links{ display: flex; gap: 34px; }
.nav-links a{
  font-size: 14px; color: var(--foam); opacity: .8;
  transition: opacity .25s;
}
.nav-links a:hover{ opacity: 1; }
.nav-cta{
  font-family: var(--mono); font-size: 12px; letter-spacing: .1em;
  text-transform: uppercase;
  padding: 9px 18px; border: 1px solid rgba(241,236,224,.3); border-radius: 100px;
  transition: border-color .3s, background .3s;
}
.nav-cta:hover{ border-color: var(--amber); background: rgba(232,163,61,.08); }

/* ===== HERO ===== */
.hero{
  position: relative;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.hero-video{
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.02);
}
.hero-fallback{
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 90% at 15% 100%, rgba(255,122,89,.35), transparent 60%),
    radial-gradient(140% 100% at 85% 0%, rgba(232,163,61,.25), transparent 55%),
    linear-gradient(180deg, #0A1720, #0C1A24 55%, #091420);
  display: none;
}
.hero.no-video .hero-video{ display: none; }
.hero.no-video .hero-fallback{ display: block; }

.hero-scrim{
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(9,16,22,.92) 0%, rgba(9,16,22,.45) 45%, rgba(9,16,22,.15) 100%);
}

/* HUD telemetry motif */
.hud{
  position: absolute; z-index: 3;
  font-family: var(--mono); font-size: 12px; letter-spacing: .08em;
  color: rgba(241,236,224,.85);
  text-transform: uppercase;
}
.hud-tl{ top: 100px; left: var(--container, 24px); left: calc((100vw - var(--container))/2); display:flex; align-items:center; gap:8px; }
.hud .dot{ width:7px; height:7px; border-radius:50%; background: var(--coral); box-shadow: 0 0 8px var(--coral); animation: blink 1.6s infinite; }
.hud-tr{ top: 100px; right: calc((100vw - var(--container))/2); }
.hud-br{ bottom: 210px; right: calc((100vw - var(--container))/2); opacity: .7; }
@keyframes blink{ 0%,100%{opacity:1;} 50%{opacity:.25;} }

.hero-content{
  position: relative; z-index: 2;
  width: var(--container); margin: 0 auto;
  padding-bottom: 110px;
}
.hero h1{
  font-size: clamp(38px, 6.4vw, 84px);
  line-height: 1.04;
  letter-spacing: -.01em;
  max-width: 14ch;
}
.hero h1 em{ font-style: italic; color: var(--amber); }
.hero-sub{
  margin-top: 22px;
  max-width: 46ch;
  font-size: clamp(15px, 1.4vw, 18px);
  color: rgba(241,236,224,.75);
}
.hero-actions{ margin-top: 34px; display: flex; gap: 16px; flex-wrap: wrap; }

.scroll-cue{
  position: absolute; z-index: 2; bottom: 36px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: rgba(241,236,224,.6);
}
.scroll-cue span{
  width: 1px; height: 34px;
  background: linear-gradient(180deg, var(--amber), transparent);
  animation: scrollpulse 1.8s infinite;
}
@keyframes scrollpulse{ 0%{ opacity: 0; transform: scaleY(.4); } 40%{ opacity:1; } 100%{ opacity:0; transform: scaleY(1);} }

/* ===== SECTIONS ===== */
.section{
  width: var(--container); margin: 0 auto;
  padding: 130px 0;
}
.section-dark{
  width: 100%; max-width: none;
  background: var(--panel);
}
.section-dark > *{ width: var(--container); margin-left: auto; margin-right: auto; }
.section-title{
  font-size: clamp(28px, 3.6vw, 46px);
  max-width: 18ch;
  margin-bottom: 46px;
  line-height: 1.15;
}
.section-lede{ max-width: 56ch; margin-bottom: 46px; font-size: 17px; }

/* reveal on scroll */
.reveal{ opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in-view{ opacity: 1; transform: translateY(0); }

/* ===== CARDS ===== */
.cards{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(241,236,224,.1);
  border: 1px solid rgba(241,236,224,.1);
}
.card{
  background: var(--abyss);
  padding: 34px 28px;
  min-height: 220px;
  display: flex; flex-direction: column; gap: 12px;
  transition: background .35s;
}
.card:hover{ background: #101F29; }
.card-wp{ font-family: var(--mono); font-size: 12px; color: var(--amber); letter-spacing: .1em; }
.card h3{ font-size: 22px; }
.card-soon{ opacity: .55; }
.card-soon:hover{ background: var(--abyss); }

@media (max-width: 900px){ .cards{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px){ .cards{ grid-template-columns: 1fr; } }

/* ===== STEPS ===== */
.steps{
  list-style: none; margin: 0 0 46px; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px;
}
.steps li{ border-top: 1px solid rgba(241,236,224,.18); padding-top: 22px; }
.step-wp{ font-family: var(--mono); color: var(--amber); font-size: 12px; letter-spacing: .1em; }
.steps h3{ font-size: 21px; margin: 10px 0 10px; }
@media (max-width: 800px){ .steps{ grid-template-columns: 1fr; } }

/* ===== GALERIE — MOSAÏQUE ===== */
.section-masonry{ padding-bottom: 90px; overflow: hidden; }
.masonry-wrap{
  position: relative;
  overflow: hidden;
  border-radius: 6px;
}
.masonry-bg{
  position: absolute;
  top: -12%; left: -12%;
  width: 124%; height: 124%;
  z-index: 0;
  pointer-events: none;
  color: var(--sea);
}
.masonry-bg svg{ width: 100%; height: 100%; display: block; }

.masonry{
  position: relative;
  z-index: 1;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.masonry-vignette{
  position: absolute; inset: 0;
  z-index: 3;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 42%, rgba(9,16,22,.58) 100%);
}
.masonry-col{
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
  will-change: transform;
}
.m-item{
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  display: flex; align-items: flex-end; padding: 16px;
  transition: transform .5s var(--ease), filter .4s var(--ease);
}
.m-item span{
  position: relative; z-index: 1;
  font-family: var(--mono); font-size: 11px; letter-spacing: .05em;
  color: rgba(241,236,224,.9);
}
.m-item::after{ content:''; position:absolute; inset:0; background: linear-gradient(0deg, rgba(0,0,0,.55), transparent 55%); }
.m-item:hover{ transform: translateY(-6px); }
.m-item img{
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.m-item:hover img{ transform: scale(1.04); }

/* profondeur : colonnes "loin" plus ternes/floues, colonnes "proches" qui ressortent */
.masonry-col.is-far .m-item{ filter: brightness(.82) saturate(.92) blur(.5px); }
.masonry-col.is-near .m-item{ filter: brightness(1.03); }
.masonry-col.is-far .m-item:hover{ filter: brightness(1) saturate(1) blur(0); }

/* hauteurs variées, façon planche de moodboard */
.m-item.m-h0{ aspect-ratio: 2/3; }
.m-item.m-h1{ aspect-ratio: 3/4; }
.m-item.m-h2{ aspect-ratio: 1/1; }
.m-item.m-h3{ aspect-ratio: 4/5; }
.m-item.m-h4{ aspect-ratio: 16/10; }
.m-item.m-h5{ aspect-ratio: 3/4; }

/* couleurs de secours si une image ne charge pas */
.masonry-col:nth-child(4n+1) .m-item{ background: linear-gradient(155deg, #16303B, #0C1A24); }
.masonry-col:nth-child(4n+2) .m-item{ background: linear-gradient(155deg, var(--coral), #6B2E22); }
.masonry-col:nth-child(4n+3) .m-item{ background: linear-gradient(155deg, #1B3A45, #0A1620); }
.masonry-col:nth-child(4n+4) .m-item{ background: linear-gradient(155deg, var(--amber), #6B4A1B); }

.gallery-note{ margin-top: 18px; font-size: 13px; }

@media (max-width: 900px){
  .masonry{ flex-wrap: wrap; }
  .masonry-col{ flex-basis: calc(50% - 7px); }
}
@media (max-width: 560px){
  .masonry-col{ flex-basis: 100%; }
}

/* ===== ABOUT / SPLIT ===== */
.section-split{ display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: center; }
.split-media{
  aspect-ratio: 3/4; border-radius: 6px;
  background: linear-gradient(160deg, #16303B, #0B1620 70%);
}
.specs{ list-style:none; padding:0; margin: 30px 0 0; display: grid; gap: 14px; }
.specs li{ display: flex; justify-content: space-between; border-top: 1px solid rgba(241,236,224,.14); padding-top: 12px; font-family: var(--mono); font-size: 13px; }
.specs b{ color: var(--foam); font-weight: 500; }
@media (max-width: 800px){ .section-split{ grid-template-columns: 1fr; } }

/* ===== CONTACT ===== */
.section-contact{ padding-bottom: 150px; }
.contact-form{ max-width: 620px; display: grid; gap: 14px; }
.form-row{ display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
input, textarea{
  width: 100%;
  background: rgba(241,236,224,.05);
  border: 1px solid rgba(241,236,224,.18);
  border-radius: 6px;
  padding: 14px 16px;
  color: var(--foam);
  font-family: var(--body); font-size: 15px;
  transition: border-color .3s, background .3s;
}
input::placeholder, textarea::placeholder{ color: var(--sea); }
input:focus, textarea:focus{
  outline: none; border-color: var(--amber); background: rgba(232,163,61,.06);
}
.contact-form .btn{ justify-self: start; border: none; cursor: pointer; }
@media (max-width: 560px){ .form-row{ grid-template-columns: 1fr; } }

/* ===== FOOTER ===== */
.footer{ border-top: 1px solid rgba(241,236,224,.1); padding: 34px 0; }
.footer-inner{
  width: var(--container); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
}
.footer-log{ font-family: var(--mono); font-size: 11px; letter-spacing: .08em; color: var(--sea); text-transform: uppercase; }
.footer-links{ display: flex; gap: 20px; font-size: 13px; }

/* Keyboard focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--amber); outline-offset: 3px;
}