/* ===== Variables ===== */
:root {
  --noir: #000;
  --olive: #10130a;
  --olive-2: #181c0f;
  --ligne: #2b3119;
  --kaki: #7a8450;
  --kaki-clair: #a9b46c;
  --kaki-fonce: #343b21;
  --blanc: #f4f3ec;
  --gris: #a2a593;
  --rouge: #b3261e;

  --display: "Black Han Sans", "Noto Sans KR", Impact, sans-serif;
  --texte: "Barlow", system-ui, sans-serif;

  --nav-h: 68px;
  --marge: clamp(1rem, 4vw, 2rem);
}

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--noir);
  color: var(--blanc);
  font: 400 1.0625rem/1.65 var(--texte);
  overflow-x: hidden;
}
body.no-scroll { overflow: hidden; }

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: 0.07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

h1, h2, h3, h4 { margin: 0; font-family: var(--display); font-weight: 400; line-height: 1.1; }
p { margin: 0; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--kaki-clair); outline-offset: 3px; }

.container { width: min(1180px, 100% - 2 * var(--marge)); margin-inline: auto; }
.section { padding-block: clamp(3rem, 7vw, 5.5rem); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.section-head h2 { font-size: clamp(2rem, 5vw, 3rem); }
.section-head h3 { font-size: 1.8rem; color: var(--kaki-clair); }
.admin-slot:empty { display: none; }
.note { margin-top: 2.5rem; color: var(--gris); }
.empty-note { color: var(--gris); padding: 1rem 0; }

/* ===== Boutons ===== */
.btn {
  display: inline-block;
  padding: 0.85rem 1.8rem;
  border: 0;
  background: var(--kaki);
  color: var(--noir);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: background 0.2s, transform 0.2s;
}
.btn:hover { background: var(--kaki-clair); transform: translateY(-2px); }
.btn:disabled { opacity: 0.5; cursor: wait; }
.btn-ghost { background: transparent; color: var(--blanc); box-shadow: inset 0 0 0 1px var(--kaki); }
.btn-ghost:hover { background: var(--kaki-fonce); }

/* ===== Navigation ===== */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  padding-inline: var(--marge);
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ligne);
}

.brand { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; }
.brand-seal {
  padding: 0.05rem 0.5rem;
  background: var(--rouge);
  border-radius: 2px;
  font-family: var(--display);
  font-size: 1.15rem;
  transform: rotate(-4deg);
}
.brand-name { font-family: var(--display); font-size: 1.4rem; letter-spacing: 0.04em; }

.nav-links { display: flex; gap: 0.5rem; }
.nav-links a {
  padding: 0.5rem 1rem;
  color: var(--gris);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.nav-links a:hover { color: var(--blanc); }
.nav-links a.active { color: var(--blanc); border-bottom-color: var(--kaki-clair); }

.nav-toggle { display: none; background: none; border: 0; padding: 0.5rem; cursor: pointer; }
.nav-toggle span { display: block; width: 26px; height: 2px; margin: 6px 0; background: var(--blanc); }

/* ===== Pages ===== */
.page { padding-top: var(--nav-h); animation: apparition 0.35s ease; }
@keyframes apparition { from { opacity: 0; } }

.page-head {
  position: relative;
  margin-bottom: 2.5rem;
  padding: clamp(3.5rem, 9vw, 6.5rem) 0 2.5rem;
  border-bottom: 1px solid var(--ligne);
  overflow: hidden;
}
.page-head h2 { position: relative; font-size: clamp(3rem, 8vw, 5.5rem); }
.page-head p { position: relative; max-width: 55ch; margin-top: 0.75rem; color: var(--gris); }
.page-hangul {
  position: absolute;
  right: 0;
  bottom: -0.15em;
  font-family: var(--display);
  font-size: clamp(7rem, 20vw, 15rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--kaki-fonce);
  pointer-events: none;
  user-select: none;
}

/* ===== Accueil : hero ===== */
.hero {
  position: relative;
  display: grid;
  place-items: center;
  min-height: calc(100svh - var(--nav-h));
  overflow: hidden;
  isolation: isolate;
  text-align: center;
  background: radial-gradient(ellipse at 50% 130%, var(--kaki-fonce), transparent 60%), var(--noir);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 45%, rgba(0, 0, 0, 0.85));
}
#hero-canvas { position: absolute; inset: 0; z-index: -3; width: 100%; height: 100%; }
.hero-glow {
  position: absolute;
  inset: 0;
  z-index: -2;
  background: radial-gradient(520px circle at var(--mx, 50%) var(--my, 45%), rgba(169, 180, 108, 0.22), transparent 65%);
}
.hero-watermark {
  position: absolute;
  inset: 0;
  z-index: -2;
  display: grid;
  place-items: center;
  font-family: var(--display);
  font-size: clamp(14rem, 50vw, 44rem);
  line-height: 1;
  white-space: nowrap;
  color: transparent;
  -webkit-text-stroke: 1px rgba(169, 180, 108, 0.16);
  user-select: none;
  will-change: transform;
}

.hero-content { padding: 2rem 1rem; will-change: transform; }
.hero-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  --nx: 0;
  --ny: 0;
  text-shadow:
    calc(0.02em + var(--nx) * -0.05em) calc(0.03em + var(--ny) * -0.05em) 0 var(--kaki),
    calc(0.04em + var(--nx) * -0.11em) calc(0.06em + var(--ny) * -0.11em) 0 var(--kaki-fonce),
    calc(0.06em + var(--nx) * -0.17em) calc(0.09em + var(--ny) * -0.17em) 0.02em rgba(0, 0, 0, 0.8);
}
.hero-hangul { font-family: var(--display); font-size: clamp(6rem, 22vw, 14rem); line-height: 1; }
.hero-name { font-family: var(--display); font-size: clamp(2rem, 7vw, 4.5rem); letter-spacing: 0.08em; line-height: 1.2; }
.hero-tagline { margin-top: 1.5rem; color: var(--gris); font-size: 1.25rem; white-space: pre-line; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; margin-top: 2.25rem; }

/* ===== Accueil : chiffres, activités, appel ===== */
.stats { display: flex; flex-wrap: wrap; border-block: 1px solid var(--ligne); }
.stat {
  position: relative;
  display: flex;
  flex: 1 1 220px;
  align-items: baseline;
  gap: 0.9rem;
  padding: 1.75rem 2rem;
  border-right: 1px solid var(--ligne);
}
.stat strong { font-family: var(--display); font-weight: 400; font-size: 2.8rem; line-height: 1; color: var(--kaki-clair); }
.stat span { color: var(--gris); }

.rows { display: grid; }
.row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 0.5rem 3rem;
  padding: 1.75rem 1rem;
  border-bottom: 1px solid var(--ligne);
  background: radial-gradient(420px circle at var(--mx, -50%) var(--my, 50%), rgba(122, 132, 80, 0.18), transparent 70%);
}
.row h3 { font-size: 1.8rem; }
.row p { max-width: 60ch; color: var(--gris); }

.cta { position: relative; overflow: hidden; background: var(--kaki-fonce); }
.cta-hangul {
  position: absolute;
  right: 4%;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--display);
  font-size: clamp(8rem, 20vw, 14rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(244, 243, 236, 0.18);
  user-select: none;
}
.cta-inner { position: relative; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem; padding-block: 3.5rem; }
.cta-inner h2 { max-width: 20ch; font-size: clamp(1.8rem, 4vw, 2.8rem); }
.cta .btn { background: var(--blanc); }
.cta .btn:hover { background: var(--kaki-clair); }

/* ===== Histoire ===== */
.story { max-width: 72ch; margin-bottom: 4rem; padding: 0.5rem 0 0.5rem 1.75rem; border-left: 3px solid var(--kaki); }
.story p { font-size: 1.2rem; white-space: pre-line; }

.timeline { margin: 0; padding: 0 0 0 2rem; list-style: none; border-left: 2px solid var(--kaki-fonce); }
.timeline-item { position: relative; padding: 0 0 2.5rem 1rem; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-2rem - 7px);
  top: 0.45rem;
  width: 12px;
  height: 12px;
  background: var(--kaki);
  transform: rotate(45deg);
}
.timeline-item time { color: var(--kaki-clair); font-weight: 600; }
.timeline-item h4 { margin: 0.2rem 0 0.4rem; font-size: 1.7rem; }
.timeline-item p { max-width: 60ch; color: var(--gris); }

/* ===== Cartes (membres, laboratoires) ===== */
.card {
  position: relative;
  background: var(--olive);
  border: 1px solid var(--ligne);
  transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform 0.25s ease-out, border-color 0.2s;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 50%), rgba(169, 180, 108, 0.16), transparent 70%);
  transition: opacity 0.2s;
}
.card::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 18px;
  height: 18px;
  pointer-events: none;
  border-right: 2px solid var(--kaki-clair);
  border-bottom: 2px solid var(--kaki-clair);
}
.card:hover { border-color: var(--kaki); }
.card:hover::before { opacity: 1; }
.card.is-empty { border-style: dashed; }

.leaders { display: grid; grid-template-columns: 1fr 1.15fr 1fr; gap: 1.25rem; align-items: end; margin-bottom: 4rem; }
.member-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1.25rem; }
.member.grade-lead { border-color: var(--kaki); }

.portrait, .lab-shot {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: repeating-linear-gradient(135deg, var(--olive-2) 0 10px, var(--olive) 10px 20px);
}
.portrait { aspect-ratio: 4 / 5; }
.portrait img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.portrait-ph { font-family: var(--display); font-size: 6rem; color: var(--kaki-fonce); }
.badge {
  position: absolute;
  left: 0;
  top: 0.9rem;
  padding: 0.2rem 0.75rem;
  background: var(--kaki);
  color: var(--noir);
  font-size: 0.9rem;
  font-weight: 600;
}

.member-info { padding: 1.1rem 1.25rem 1.4rem; }
.member-info h3 { font-size: 1.6rem; }
.member-role { color: var(--kaki-clair); font-weight: 500; }
.member-bio { margin-top: 0.6rem; color: var(--gris); font-size: 0.98rem; }
.is-empty .member-info h3, .is-empty .member-role { color: var(--gris); }

/* ===== Laboratoires ===== */
.lab-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr)); gap: 1.5rem; }
.lab-shot { width: 100%; aspect-ratio: 16 / 9; padding: 0; border: 0; color: var(--gris); }
button.lab-shot { cursor: zoom-in; }
.lab-shot img { width: 100%; height: 100%; object-fit: cover; }
.lab-meta { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--ligne); }
.lab-field { padding: 1rem 1.25rem; }
.lab-field + .lab-field { border-left: 1px solid var(--ligne); }
.lab-field span { display: block; color: var(--gris); font-size: 0.95rem; }
.lab-field strong { font-family: var(--display); font-weight: 400; font-size: 1.7rem; }

/* ===== Rejoindre ===== */
.contact { margin-top: 4rem; padding: 2rem; background: var(--olive); border: 1px solid var(--ligne); }
.contact h3 { margin-bottom: 0.6rem; color: var(--kaki-clair); font-size: 1.6rem; }

/* ===== Pied de page ===== */
.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem var(--marge);
  border-top: 1px solid var(--ligne);
  color: var(--gris);
  font-size: 0.95rem;
}
.footer-admin { background: none; border: 0; color: var(--gris); text-decoration: underline; cursor: pointer; }
.footer-admin:hover { color: var(--blanc); }

/* ===== Administration ===== */
.admin-bar {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  z-index: 60;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  max-width: calc(100% - 2rem);
  padding: 0.6rem 1rem;
  background: var(--olive);
  border: 1px solid var(--kaki);
  transform: translateX(-50%);
}
.admin-bar:empty { display: none; }
.admin-name { color: var(--kaki-clair); font-weight: 600; }

.mini-btn {
  padding: 0.25rem 0.7rem;
  background: var(--noir);
  border: 1px solid var(--kaki);
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s;
}
.mini-btn:hover { background: var(--kaki); color: var(--noir); }
.mini-btn.danger { border-color: var(--rouge); }
.mini-btn.danger:hover { background: var(--rouge); color: var(--blanc); }
.setting-edit { margin-top: 0.9rem; }

.card-actions { position: absolute; top: 0.6rem; right: 0.6rem; z-index: 2; display: flex; gap: 0.35rem; }
.stat .card-actions, .row .card-actions { top: 0.5rem; }

.admin-list { margin: 0 0 1.5rem; padding: 0; list-style: none; }
.admin-list li { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.6rem 0; border-bottom: 1px solid var(--ligne); }
.modal-subtitle { margin-bottom: 1rem; color: var(--kaki-clair); font-size: 1.4rem; }

/* ===== Fenêtres modales et formulaires ===== */
.modal { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; padding: 1rem; background: rgba(0, 0, 0, 0.82); }
.modal-box {
  position: relative;
  width: min(520px, 100%);
  max-height: calc(100svh - 2rem);
  padding: 2rem;
  overflow-y: auto;
  background: var(--olive);
  border: 1px solid var(--kaki);
}
.modal-box.wide { width: min(1100px, 100%); padding: 1rem; }
.modal-box h2 { margin-bottom: 1.25rem; font-size: 1.8rem; }
.modal-box h2:empty { display: none; }
.modal-close { position: absolute; top: 0.75rem; right: 0.75rem; z-index: 2; background: none; border: 0; font-size: 1.2rem; cursor: pointer; }
.lightbox-img { width: 100%; max-height: calc(100svh - 4rem); object-fit: contain; }

.form { display: grid; gap: 1rem; }
.field { display: grid; gap: 0.35rem; }
.field > span { color: var(--gris); font-size: 0.95rem; }
.field input:not([type="file"]), .field select, .field textarea {
  width: 100%;
  padding: 0.65rem 0.8rem;
  background: var(--noir);
  border: 1px solid var(--ligne);
  border-radius: 0;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 0; border-color: var(--kaki-clair); }
.image-input { display: grid; gap: 0.6rem; }
.form-preview { max-height: 160px; object-fit: cover; border: 1px solid var(--ligne); }
.form-error { min-height: 1.2em; color: #ff7b72; }
.form-actions { display: flex; gap: 0.75rem; justify-content: flex-end; }

.toasts { position: fixed; top: calc(var(--nav-h) + 1rem); right: 1rem; z-index: 300; display: grid; gap: 0.5rem; }
.toast { padding: 0.75rem 1.1rem; background: var(--olive); border-left: 4px solid var(--kaki-clair); box-shadow: 0 6px 24px rgba(0, 0, 0, 0.6); }
.toast.error { border-left-color: var(--rouge); }

/* ===== Adaptation mobile ===== */
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 1rem var(--marge);
    background: var(--noir);
    border-bottom: 1px solid var(--ligne);
    transform: translateY(-130%);
    transition: transform 0.3s;
  }
  .nav.open .nav-links { transform: none; }
  .leaders { grid-template-columns: 1fr; }
  .member.grade-lead { order: -1; }
  .row { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--ligne); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}