/* ============================================================
   emissioncorpo.com — v2, direction moderne
   Une emission est un format. Grotesque contemporain,
   fond clair net, cuivre en accent, plateau sombre en respiration.
   ============================================================ */

:root {
  --ink:        #16150F;
  --ink-soft:   #57534A;
  --paper:      #F2F0EA;
  --paper-2:    #E9E5DB;
  --slate:      #14130F;
  --slate-2:    #1C1B15;
  --bone:       #F0ECE1;
  --bone-soft:  #A49B89;
  --copper:     #A5703B;
  --copper-lo:  #C08E56;
  --line:       #D9D2C4;
  --line-dk:    #333029;

  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --body:    "Inter", system-ui, -apple-system, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, monospace;

  --wrap: 1220px;
  --gutter: clamp(1.4rem, 5vw, 4rem);
  --sec-y: clamp(4.5rem, 10vw, 9rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--body);
  font-size: clamp(1rem, 0.5vw + 0.92rem, 1.1rem);
  line-height: 1.68; font-weight: 400;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

.eyebrow {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--copper);
  margin: 0 0 1.4rem; display: inline-flex; align-items: center; gap: 0.7rem;
}
.eyebrow::before { content: ""; width: 1.7rem; height: 1px; background: var(--copper); display: inline-block; }

.lead {
  font-family: var(--display); font-weight: 600; line-height: 1.02;
  letter-spacing: -0.03em;
  font-size: clamp(2rem, 4.4vw, 3.6rem);
  margin: 0 0 1.6rem; max-width: 18ch;
}
.lead em { font-style: normal; color: var(--copper); }
.prose { max-width: 56ch; color: var(--ink-soft); }
.prose p { margin: 0 0 1.1rem; }
.prose strong { color: var(--ink); font-weight: 600; }

/* En-tete */
.site-head {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent; transition: border-color .3s, background .3s;
}
.site-head.scrolled { border-bottom-color: var(--line); }
.site-head .bar { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand {
  font-family: var(--display); font-weight: 700; font-size: 1.12rem;
  letter-spacing: -0.03em; display: inline-flex; align-items: center; gap: 0.55rem; color: var(--ink);
}
.brand .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--copper);
  animation: onair 2.6s ease-in-out infinite;
}
@keyframes onair {
  0%,100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--copper) 55%, transparent); }
  50%     { box-shadow: 0 0 0 6px color-mix(in srgb, var(--copper) 0%, transparent); }
}
@media (prefers-reduced-motion: reduce) { .brand .dot { animation: none; } }
.nav { display: flex; gap: clamp(1.2rem, 3vw, 2.4rem); align-items: center; }
.nav a { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); transition: color .2s; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav .cta { color: var(--copper); border: 1px solid var(--copper); padding: 0.55rem 0.95rem; }
.nav .cta:hover { background: var(--copper); color: var(--paper); }
.nav-toggle { display: none; }

/* Hero */
.hero { background: #14130F url('/img/hero.jpg') center/cover no-repeat; color: var(--bone); position: relative; overflow: hidden; min-height: 94vh; min-height: 94svh; display: flex; flex-direction: column; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(17,16,12,.55) 0%, rgba(17,16,12,0) 26%, rgba(17,16,12,.12) 44%, rgba(17,16,12,.88) 100%),
    linear-gradient(90deg, rgba(17,16,12,.82) 0%, rgba(17,16,12,.34) 42%, rgba(17,16,12,0) 66%);
}
.hero .wrap { position: relative; z-index: 2; }
.hero-top {
  padding-top: clamp(2.2rem, 6vw, 3.6rem);
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--bone-soft);
}
.antenne { display: inline-flex; align-items: center; gap: 0.55rem; color: var(--copper-lo); }
.antenne .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--copper-lo); animation: onair 2.6s ease-in-out infinite; }
@media (prefers-reduced-motion: reduce) { .antenne .dot { animation: none; } }

.hero-body { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; padding-block: clamp(3.2rem, 9vw, 6rem) clamp(1.4rem, 3vw, 2rem); }
.hero h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2.7rem, 8vw, 6.4rem);
  line-height: 0.98; letter-spacing: -0.04em; margin: 0; max-width: 15ch;
}
.hero h1 em { font-style: normal; color: var(--copper-lo); }
.hero .sub {
  margin: clamp(1.6rem, 3vw, 2.2rem) 0 0; max-width: 44ch; color: var(--bone-soft);
  font-size: clamp(1.05rem, 1.4vw, 1.28rem); line-height: 1.5;
}
.reveal-line { display: block; overflow: hidden; }
.reveal-line > span { display: block; transform: translateY(103%); }
.is-lit .reveal-line > span { transform: translateY(0); transition: transform .85s cubic-bezier(.16,.84,.3,1); }
.is-lit .reveal-line:nth-child(2) > span { transition-delay: .08s; }
.is-lit .reveal-line:nth-child(3) > span { transition-delay: .16s; }
@media (prefers-reduced-motion: reduce) { .reveal-line > span { transform: none !important; } }

/* Bandeau formats (signature) */
.formats-strip {
  border-top: 1px solid var(--line-dk);
  padding-block: clamp(1.4rem, 3vw, 2rem) clamp(2rem, 5vw, 3rem);
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 0.6rem clamp(1rem, 2.4vw, 1.8rem);
  font-family: var(--display); font-weight: 500;
  font-size: clamp(1.1rem, 2.2vw, 1.7rem); letter-spacing: -0.02em; color: var(--bone);
}
.formats-strip .sep { color: var(--copper); font-weight: 400; }
.formats-strip .tag { color: var(--bone); }

/* Sections */
section { padding-block: var(--sec-y); }
.section-alt { background: var(--paper-2); }
.split { display: grid; gap: clamp(2rem, 5vw, 4.5rem); grid-template-columns: 1fr; align-items: start; }
@media (min-width: 880px) {
  .split { grid-template-columns: 0.8fr 1.2fr; }
  .split.flip { grid-template-columns: 1.2fr 0.8fr; }
}

/* Grille de formats (cartes photo) */
.fmt-grid { display: grid; gap: clamp(1rem, 2vw, 1.4rem); grid-template-columns: 1fr; margin-top: clamp(2.2rem, 4vw, 3rem); }
@media (min-width: 620px) { .fmt-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 980px) { .fmt-grid { grid-template-columns: repeat(3, 1fr); } }
.fmt {
  position: relative; overflow: hidden; aspect-ratio: 4 / 3;
  background: var(--slate-2); background-size: cover; background-position: center;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: clamp(1.3rem, 2.5vw, 1.7rem); color: var(--bone);
  border: 1px solid var(--line-dk); transition: transform .3s ease;
}
.fmt::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, color-mix(in srgb, var(--slate) 6%, transparent) 28%, color-mix(in srgb, var(--slate) 92%, transparent));
}
.fmt.no-photo { background: var(--slate); }
.fmt.no-photo::after { background: radial-gradient(85% 80% at 82% 8%, color-mix(in srgb, var(--copper) 16%, transparent), transparent 60%); }
.fmt:hover { transform: translateY(-3px); }
.fmt > * { position: relative; z-index: 2; }
.fmt .k { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--copper-lo); }
.fmt h3 { font-family: var(--display); font-weight: 600; font-size: 1.55rem; letter-spacing: -0.02em; margin: 0.5rem 0 0.35rem; color: var(--bone); }
.fmt p { margin: 0; color: var(--bone-soft); font-size: 0.92rem; max-width: 34ch; }
.fmt-note { margin-top: clamp(1.6rem, 3vw, 2.2rem); font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.04em; color: var(--ink-soft); text-transform: uppercase; }
.fmt-note b { color: var(--copper); font-weight: 500; }

/* Bande image plateau */
.band {
  margin-top: clamp(2.2rem, 5vw, 3.4rem);
  aspect-ratio: 21 / 9; background: var(--slate-2); border: 1px solid var(--line);
  background-size: cover; background-position: center; position: relative; overflow: hidden;
  display: flex; align-items: flex-end;
}
.band.placeholder::before {
  content: "Photo plateau"; position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--bone-soft);
}
.band .cap { position: relative; z-index: 2; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bone); padding: 1rem 1.2rem; background: linear-gradient(0deg, color-mix(in srgb, var(--slate) 70%, transparent), transparent); width: 100%; }

/* Plateau sombre */
.plateau { background: var(--slate); color: var(--bone); position: relative; overflow: hidden; }
.plateau::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(80% 70% at 88% 12%, color-mix(in srgb, var(--copper) 16%, transparent), transparent 55%); }
.plateau .wrap { position: relative; z-index: 2; }
.plateau .eyebrow, .plateau .eyebrow::before { color: var(--copper-lo); background-color: var(--copper-lo); }
.plateau .eyebrow { background: none; }
.plateau .eyebrow::before { background: var(--copper-lo); }
.plateau .lead { color: var(--bone); }
.plateau .prose { color: var(--bone-soft); }
.plateau .prose strong { color: var(--bone); }
.specs { display: grid; gap: 1px; background: var(--line-dk); border: 1px solid var(--line-dk); margin-top: clamp(2rem, 4vw, 3rem); }
@media (min-width: 680px) { .specs { grid-template-columns: repeat(3, 1fr); } }
.spec { background: var(--slate); padding: 1.4rem clamp(1.2rem, 2.5vw, 1.8rem); }
.spec .k { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--copper-lo); }
.spec .v { margin-top: 0.35rem; color: var(--bone); font-size: 1rem; }

/* Galerie du lieu */
.lieu-grid { display: grid; gap: clamp(0.8rem, 1.6vw, 1.1rem); grid-template-columns: repeat(2, 1fr); margin-top: clamp(2rem, 4vw, 3rem); }
@media (min-width: 760px) { .lieu-grid { grid-template-columns: repeat(3, 1fr); } }
.lieu { position: relative; margin: 0; aspect-ratio: 4 / 3; background: var(--slate-2); background-size: cover; background-position: center; border: 1px solid var(--line-dk); overflow: hidden; }
.lieu::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 42%, rgba(20,19,15,.86)); }
.lieu figcaption { position: absolute; left: 0; bottom: 0; z-index: 2; padding: 0.9rem 1rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--copper-lo); }

/* References */
.refs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: clamp(2rem, 4vw, 3rem); }
@media (min-width: 680px) { .refs-grid { grid-template-columns: repeat(3, 1fr); } }
.ref { background: var(--paper); padding: clamp(1.6rem, 3vw, 2.2rem); display: flex; flex-direction: column; gap: 0.4rem; min-height: 130px; justify-content: flex-end; }
.ref .name { font-family: var(--display); font-size: 1.4rem; font-weight: 600; letter-spacing: -0.02em; }
.ref .kind { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--copper); }

/* Cartons realisations */
.cartons { display: grid; gap: clamp(1.2rem, 2.5vw, 1.6rem); grid-template-columns: 1fr; margin-top: clamp(2.4rem, 5vw, 3.4rem); }
@media (min-width: 720px) { .cartons { grid-template-columns: 1fr 1fr; } }
.carton {
  background: var(--slate); color: var(--bone); border: 1px solid var(--line-dk);
  aspect-ratio: 16 / 10; display: flex; flex-direction: column; justify-content: space-between;
  padding: clamp(1.4rem, 3vw, 2rem); position: relative; overflow: hidden;
  background-size: cover; background-position: center;
}
.carton::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, color-mix(in srgb, var(--slate) 18%, transparent), color-mix(in srgb, var(--slate) 86%, transparent)); }
.carton.has-img::after { background: linear-gradient(180deg, transparent 30%, color-mix(in srgb, var(--slate) 90%, transparent)); }
.carton > * { position: relative; z-index: 2; }
.carton .slate-top { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--copper-lo); display: flex; justify-content: space-between; }
.carton .titre { font-family: var(--display); font-weight: 600; font-size: clamp(1.6rem, 3vw, 2.1rem); line-height: 1.02; letter-spacing: -0.02em; }
.carton .desc { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.04em; color: var(--bone-soft); text-transform: uppercase; margin-top: 0.4rem; }

/* Visite */
.visite { background: var(--slate); color: var(--bone); }
.visite .lead { color: var(--bone); max-width: 22ch; }
.visite .lead em { color: var(--copper-lo); }
.btn {
  display: inline-flex; align-items: center; gap: 0.7rem; font-family: var(--mono);
  font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 1rem 1.6rem; margin-top: 1.6rem; background: var(--copper); color: var(--paper);
  transition: background .2s, transform .2s;
}
.btn:hover { background: var(--copper-lo); transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--bone); border: 1px solid var(--line-dk); }
.btn.ghost:hover { border-color: var(--copper-lo); color: var(--copper-lo); }

/* Formulaire */
.form-grid { display: grid; gap: 1.2rem; grid-template-columns: 1fr; max-width: 640px; margin-top: clamp(2rem, 4vw, 3rem); }
@media (min-width: 620px) { .form-grid .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; } }
.field label { display: block; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 0.5rem; }
.field input, .field select, .field textarea {
  width: 100%; padding: 0.9rem 1rem; font-family: var(--body); font-size: 1rem; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: 0; transition: border-color .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--copper); }
.field textarea { min-height: 150px; resize: vertical; }

/* Illustration Villa (contact) */
.villa { margin: 1.9rem 0 0; aspect-ratio: 3 / 2; background: var(--paper-2); background-size: cover; background-position: center; border: 1px solid var(--line); }
.villa figcaption { display: none; }

/* Pied */
.site-foot { background: var(--slate); color: var(--bone-soft); padding-block: clamp(3rem, 6vw, 4.5rem); font-size: 0.92rem; }
.foot-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 720px) { .foot-grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.site-foot h4 { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--copper-lo); margin: 0 0 0.9rem; font-weight: 500; }
.site-foot a:hover { color: var(--bone); }
.site-foot .mark { font-family: var(--display); font-weight: 700; font-size: 1.5rem; letter-spacing: -0.03em; color: var(--bone); margin-bottom: 0.6rem; }
.foot-legal { margin-top: clamp(2.4rem, 5vw, 3.4rem); padding-top: 1.6rem; border-top: 1px solid var(--line-dk); font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.05em; color: var(--bone-soft); text-transform: uppercase; display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; justify-content: space-between; }

/* Reveal */
.rise { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s cubic-bezier(.16,.84,.3,1); }
.rise.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rise { opacity: 1 !important; transform: none !important; } }

/* Menu mobile */
@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; background: none; border: none; cursor: pointer; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink); padding: 0.4rem 0; }
  .nav { position: fixed; inset: 70px 0 auto 0; background: var(--paper); flex-direction: column; align-items: flex-start; gap: 0; padding: 0.5rem var(--gutter) 1.5rem; border-bottom: 1px solid var(--line); transform: translateY(-120%); transition: transform .3s ease; z-index: 55; }
  .nav.open { transform: translateY(0); }
  .nav a { padding: 0.9rem 0; width: 100%; border-bottom: 1px solid var(--line); }
  .nav .cta { border: 1px solid var(--copper); margin-top: 0.9rem; }
}
:focus-visible { outline: 2px solid var(--copper); outline-offset: 3px; }