@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&display=swap');

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

/* ── Palette fixe ─────────────────────────────────────────── */
:root {
  --navy:          #13112B;
  --navy-80:       rgba(19, 17, 43, 0.82);
  --navy-65:       rgba(19, 17, 43, 0.65);
  --purple:        #7B3AED;
  --purple-light:  #A370FF;
  --text:          #FFFFFF;
  --text-muted:    rgba(255, 255, 255, 0.55);
  --border:        rgba(255, 255, 255, 0.13);
  --border-strong: rgba(255, 255, 255, 0.22);
  --radius-pill:   999px;
  --radius-card:   18px;
  --radius-md:     12px;

  /* Aliases partagés — utilisés par .card, a-propos, projet-detail */
  --glass:         rgba(255, 255, 255, 0.07);
  --glass-strong:  rgba(255, 255, 255, 0.12);
  --glass-border:  rgba(255, 255, 255, 0.13);
  --radius:        18px;
  --accent:        #A370FF;
  --step-grad:     linear-gradient(135deg, #7B3AED, #A370FF);
}

html { scroll-behavior: smooth; }

/* ── Background ───────────────────────────────────────────── */
body {
  font-family: 'DM Sans', sans-serif;
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--navy);
}

.bg-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: var(--navy);
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
  opacity: 0;
  transition: opacity 1.4s ease;
}

@media (max-width: 680px) {
  .bg-img {
    object-position: center center;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
  }
}

.bg-img.active { opacity: 1; }

.bg-overlay {
  position: absolute;
  inset: 0;
  background: rgba(4, 4, 18, 0.34);
  z-index: 1;
}

/* ── Page shell ───────────────────────────────────────────── */
.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Navigation ───────────────────────────────────────────── */
.nav {
  /* 3 colonnes : [vide] [nav-pill centré] [droite] */
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 28px clamp(28px, 4vw, 80px);
}

/* Colonne droite : lang + mode */
.nav-right {
  grid-column: 3;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

/* Wrapper des contrôles (lang + mode) — flex row sur desktop */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 28px;
}

/* Bouton toggle (visible uniquement sur mobile) */
.nav-mode-toggle { display: none; }

/* Lien CV */
.nav-cv-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 0.5px solid rgba(163,112,255,0.45);
  border-radius: var(--radius-pill);
  background: rgba(123,58,237,0.10);
  color: var(--purple-light);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.nav-cv-btn:hover {
  background: rgba(123,58,237,0.22);
  border-color: rgba(163,112,255,0.7);
  color: #fff;
}
.nav-cv-btn .material-icons-round { font-size: 15px; }

/* Nav pill — colonne centrale, vraiment centré */
.nav-links {
  grid-column: 2;
  display: flex;
  align-items: center;
  background: var(--navy-80);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 5px;
  gap: 2px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.nav-link {
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--text-muted);
  text-decoration: none;
  padding: 9px 26px;
  border-radius: var(--radius-pill);
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}

.nav-link:hover { color: var(--text); }

.nav-link.active {
  background: var(--purple);
  color: var(--text);
}

/* Language switcher */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-sep {
  width: 1px;
  height: 16px;
  background: var(--border-strong);
}

.lang-btn {
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0;
  transition: color 0.2s;
}

.lang-btn.active { color: var(--purple-light); }
.lang-btn:hover  { color: var(--text); }

/* Mode selector — pill avec anneau actif */
.mode-selector {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #111827;
  border: 0.5px solid rgba(255,255,255,0.07);
  border-radius: 999px;
  padding: 8px 18px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.mode-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid transparent;
  background: transparent;
  color: rgba(255,255,255,0.40);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, border-color 0.2s;
  position: relative;
  flex-shrink: 0;
}

.mode-btn:hover { color: rgba(255,255,255,0.75); }

/* Actif : anneau violet, icône blanche — sans fond */
.mode-btn.active {
  border-color: var(--purple);
  color: #fff;
  background: transparent;
}

.mode-btn .material-icons-round {
  font-size: 18px;
  line-height: 1;
}

/* Tooltip */
.mode-btn::after {
  content: attr(data-label);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--navy-80);
  border: 0.5px solid var(--border);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  padding: 4px 10px;
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
  backdrop-filter: blur(20px);
}

.mode-btn:hover::after { opacity: 1; }

/* ── CTA button ───────────────────────────────────────────── */
.cta-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 14px 14px 22px;
  background: var(--navy-65);
  border: 0.5px solid var(--border-strong);
  border-radius: var(--radius-pill);
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  font-weight: 400;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background 0.2s, border-color 0.2s;
  gap: 16px;
}

.cta-btn:hover { background: var(--navy-80); border-color: var(--border-strong); }

.cta-btn:focus-visible {
  outline: 2px solid var(--purple-light);
  outline-offset: 2px;
}

.cta-arrow {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--navy);
  border: 0.5px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s;
}

.cta-btn:hover .cta-arrow { background: var(--purple); }

.cta-arrow .material-icons-round { font-size: 16px; }

/* ── Sheep ────────────────────────────────────────────────── */
.sheep-container {
  position: fixed;
  bottom: 0;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  gap: 0;
  pointer-events: none;
  transition: opacity 0.6s ease;
}

[data-mode="nuit"] .sheep-container { opacity: 0; pointer-events: none; }

.sheep {
  object-fit: contain;
  object-position: bottom;
  pointer-events: auto;
  cursor: pointer;
  transition: transform 0.3s ease;
  user-select: none;
}

.sheep:hover { transform: none; }

/* ── Scroll indicator ─────────────────────────────────────── */
.scroll-indicator {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  animation: bounce 1.8s ease-in-out infinite;
  opacity: 0.55;
}

.scroll-indicator .material-icons-round {
  font-size: 20px;
  color: var(--text);
  display: block;
  line-height: 1;
  margin-top: -8px;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(5px); }
}

/* ── Transition entre pages ──────────────────────────────── */
@keyframes page-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.page { animation: page-in 0.22s ease; }

/* ── Utilitaires partagés ─────────────────────────────────── */

.wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 80px);
}

.card {
  background: var(--glass);
  border: 0.5px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
}

.card-label {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.card-value {
  font-size: 14px;
  font-weight: 300;
  color: var(--text);
  line-height: 1.65;
}

.tag {
  display: inline-flex;
  font-size: 11px;
  font-weight: 400;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--glass);
  border: 0.5px solid var(--glass-border);
  color: var(--text-muted);
  white-space: nowrap;
  backdrop-filter: blur(16px);
}

.eyebrow {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
}

.lead {
  font-size: 15px;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.7;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 400;
  text-decoration: none;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  border: none;
  transition: background 0.2s, color 0.2s;
}

.btn-ghost {
  background: var(--glass);
  border: 0.5px solid var(--glass-border);
  color: var(--text-muted);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.btn-ghost svg {
  width: 13px; height: 13px;
  stroke: currentColor; fill: none;
  stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
}

.btn-ghost:hover { background: var(--glass-strong); color: var(--text); }

/* ── Focus visible global ─────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--purple-light);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── Skip link (accessibilité) ────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--purple);
  color: #fff;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  z-index: 100;
  transition: top 0.2s;
}

.skip-link:focus { top: 16px; }

/* ── Responsive nav ───────────────────────────────────────── */
@media (min-width: 1800px) {
  .nav { padding-left: clamp(80px, 11vw, 300px); padding-right: clamp(80px, 11vw, 300px); }
}

@media (min-width: 1600px) and (max-width: 1799px) {
  .nav { padding-left: clamp(60px, 8vw, 180px); padding-right: clamp(60px, 8vw, 180px); }
}

@media (max-width: 960px) {
  .nav { padding: 20px clamp(16px, 3vw, 40px); }
  .nav-link { padding: 8px 16px; }
}

/* ── Colonne gauche nav (burger sur mobile) ───────── */
.nav-left { display: none; }

/* ── Burger button (caché sur desktop) ────────────── */
.nav-burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 0.5px solid rgba(255,255,255,0.15);
  background: rgba(19,17,43,0.82);
  color: #fff;
  cursor: pointer;
  flex-shrink: 0;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background 0.2s;
}
.nav-burger .material-icons-round { font-size: 20px; }
.nav-burger[aria-expanded="true"] { background: rgba(100,60,200,0.5); }

/* ── Menu mobile (caché par défaut) ───────────────── */
.nav-mobile-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 16px;
  right: 16px;
  background: rgba(13,11,32,0.97);
  border: 0.5px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  pointer-events: none;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.2s, transform 0.2s;
  z-index: 190;
}
.nav-mobile-menu.open {
  pointer-events: auto;
  opacity: 1;
  transform: translateY(0);
}
.nav-mobile-link {
  font-size: 15px;
  font-weight: 400;
  color: rgba(255,255,255,0.72);
  text-decoration: none;
  padding: 12px 16px;
  border-radius: 10px;
  transition: background 0.15s, color 0.15s;
  display: block;
}
.nav-mobile-link:hover { background: rgba(255,255,255,0.06); color: #fff; }
.nav-mobile-link.active { background: var(--purple); color: #fff; }
.nav-mobile-sep {
  height: 0.5px;
  background: rgba(255,255,255,0.08);
  margin: 4px 8px;
}
.nav-mobile-cv {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--purple-light);
  text-decoration: none;
  padding: 11px 16px;
  border-radius: 10px;
  transition: background 0.15s;
}
.nav-mobile-cv:hover { background: rgba(255,255,255,0.06); }
.nav-mobile-cv .material-icons-round { font-size: 16px; }

@media (max-width: 680px) {
  .nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    position: relative;
  }

  /* Masquer la pill de nav et le bouton CV */
  .nav-links { display: none; }
  .nav-cv-btn { display: none; }

  /* Afficher la colonne gauche et le burger */
  .nav-left { display: flex; }
  .nav-burger { display: flex; }

  /* Plus de hauteur dans la nav */
  .nav { padding: 16px 16px; }

  /* Tooltip des modes vers le bas (sinon coupé par le haut de l'écran) */
  .mode-btn::after {
    bottom: auto;
    top: calc(100% + 8px);
  }

  /* Masquer le bouton toggle — contrôles directement visibles */
  .nav-mode-toggle { display: none; }

  /* Contrôles inline dans la nav */
  .nav-controls {
    position: static;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    border-radius: 0;
    padding: 0;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  /* Mode selector plus compact */
  .mode-selector { padding: 6px 10px; gap: 2px; }
  .mode-btn { width: 30px; height: 30px; }
  .mode-btn .material-icons-round { font-size: 16px; }
  .lang-switch { display: flex; }
}

@media (max-width: 400px) {
  .mode-selector { gap: 0; }
  .mode-btn { width: 30px; height: 30px; }
}