/* ============================================================
   PIXEL ÉTINCELLE — COMPOSANTS PARTAGÉS
   Header, footer, boutons, cards, timeline, forms, FAQ, portfolio.
   ============================================================ */

/* ---------- Buttons — style "velouté" 3D neumorphique ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-title);
  font-size: var(--fs-md);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.95rem 2.1rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), filter var(--dur-base) var(--ease-out);
  min-height: 48px;
  touch-action: manipulation;
}
.btn:hover { transform: translateY(-3px); }
.btn:active { transform: translateY(-1px); transition-duration: 60ms; }

.btn-primary {
  background: var(--pe-grad);
  color: var(--pe-white);
  box-shadow: var(--btn-raised);
}
.btn-primary:hover { box-shadow: var(--btn-raised-hover); filter: saturate(1.08) brightness(1.03); }
.btn-primary:active { box-shadow: var(--btn-pressed); filter: saturate(1.02); }

.btn-ghost {
  background: var(--bg-elevated);
  color: var(--text-primary);
  box-shadow: var(--neu-raised-600);
}
.btn-ghost:hover { color: var(--accent-primary); box-shadow: -8px -8px 18px var(--neu-light-600), 10px 10px 24px var(--neu-dark-600), 0 0 0 1px rgba(246,160,73,.25); }
.btn-ghost:active { box-shadow: var(--neu-inset-700); color: var(--accent-primary); }

/* ---------- Header ---------- */
/* ScrollSmoother a besoin que le wrapper masque le débordement pendant que
   le contenu défile via transform ; le header reste fixed en dehors. */
#smooth-wrapper { overflow: hidden; position: fixed; inset: 0; width: 100%; height: 100%; }
#smooth-content { overflow: visible; width: 100%; padding-top: 76px; }

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-sticky);
  background: rgba(19, 19, 32, 0.78);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.site-header-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.site-logo { height: 38px; width: auto; flex-shrink: 0; }
.site-logo img { height: 100%; width: auto; }

.main-nav { display: flex; align-items: center; gap: var(--space-2); }
.main-nav > ul { display: flex; align-items: center; gap: var(--space-1); list-style: none; margin: 0; padding: 0; }

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--text-secondary);
  transition: color var(--dur-fast), box-shadow var(--dur-fast);
}
.nav-link:hover, .nav-link[aria-expanded="true"] { color: var(--text-primary); box-shadow: var(--neu-inset-800); }
.nav-item.current > .nav-link { color: var(--accent-primary); }

.nav-item { position: relative; }

.mega-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 320px;
  background: var(--bg-elevated);
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--neu-raised-600), var(--shadow-card);
  padding: var(--space-3);
  display: grid;
  gap: 2px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility var(--dur-base);
}
@media (min-width: 961px) {
  .nav-item:hover .mega-menu,
  .nav-item:focus-within .mega-menu {
    opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
  }
}

.mega-menu a {
  display: block;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--text-primary);
}
.mega-menu a:hover { box-shadow: var(--neu-inset-600); color: var(--accent-primary); }
.mega-menu a small { display: block; font-weight: 400; color: var(--text-muted); font-size: 0.75rem; margin-top: 2px; }

.header-actions { display: flex; align-items: center; gap: var(--space-3); }

.lang-switch { display: flex; gap: 2px; background: var(--bg-elevated); box-shadow: var(--neu-inset-800); border-radius: var(--radius-full); padding: 4px; }
.lang-switch a {
  padding: 6px 10px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  transition: box-shadow var(--dur-fast), color var(--dur-fast);
}
.lang-switch a[aria-current="true"] { background: var(--pe-grad); color: var(--pe-white); box-shadow: 0 4px 12px rgba(85,60,143,.4); }

.nav-toggle {
  display: none;
  background: none; border: none; color: var(--text-primary);
  width: 44px; height: 44px; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
}

.nav-item-mobile-only { display: none; }

@media (max-width: 960px) {
  .header-actions .btn.btn-primary { display: none; }
  .nav-item-mobile-only { display: list-item; }
  .main-nav { position: fixed; top: 76px; left: 0; width: 100vw; height: calc(100dvh - 76px); background: var(--bg-primary); box-shadow: inset 0 8px 20px -12px rgba(0,0,0,.6); flex-direction: column; align-items: stretch; padding: var(--space-6) var(--gutter); overflow-y: auto; transform: translateX(100%); transition: transform var(--dur-slow) var(--ease-out); }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav > ul { flex-direction: column; align-items: stretch; gap: var(--space-2); }
  .mega-menu { position: static; transform: none; opacity: 1; visibility: visible; display: none; box-shadow: none; border: none; background: transparent; padding-left: var(--space-4); }
  .nav-item.is-open .mega-menu { display: grid; }
  .nav-toggle { display: inline-flex; }
}

/* ---------- Footer ---------- */
.site-footer { background: var(--bg-secondary); box-shadow: inset 0 1px 0 rgba(255,255,255,.04), 0 -20px 40px -20px rgba(0,0,0,.4); padding-block: var(--space-16) var(--space-8); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-12); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-col h4 { font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: .12em; color: var(--text-muted); margin-bottom: var(--space-4); }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.footer-col a { color: var(--text-secondary); font-size: var(--fs-sm); transition: color var(--dur-fast); }
.footer-col a:hover { color: var(--accent-primary); }
.footer-social { display: flex; gap: var(--space-3); margin-top: var(--space-4); }
.footer-social a { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; background: var(--bg-elevated); box-shadow: var(--neu-raised-700); transition: box-shadow var(--dur-fast); }
.footer-social a:hover { box-shadow: var(--neu-inset-700); color: var(--accent-primary); }
.footer-bottom { margin-top: var(--space-16); padding-top: var(--space-6); box-shadow: inset 0 1px 0 rgba(255,255,255,.05); display: flex; flex-wrap: wrap; gap: var(--space-4); justify-content: space-between; font-size: var(--fs-xs); color: var(--text-muted); }

/* ---------- Hero badge / pills / tags ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-full);
  background: var(--bg-elevated);
  box-shadow: var(--neu-raised-600);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
}
.badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--pe-grad); flex-shrink: 0; box-shadow: 0 0 8px rgba(229,18,35,.6); }

.tag {
  display: inline-flex;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--bg-elevated);
  color: #cbb6f7;
  box-shadow: var(--neu-inset-600);
}

/* ---------- Grids & cards ---------- */
.grid { display: grid; gap: var(--space-6); perspective: 1400px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* Panneau neumorphique extrudé — même teinte que le fond, profondeur
   donnée uniquement par le duo d'ombres claire/sombre, jamais par une bordure. */
.card {
  background: var(--bg-elevated);
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--neu-raised-600);
  transition: box-shadow var(--dur-base) var(--ease-out);
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  transform-style: preserve-3d;
  will-change: transform;
}
.card:hover { box-shadow: -10px -10px 22px var(--neu-light-600), 14px 14px 30px var(--neu-dark-600); }
.card-icon {
  font-size: 1.7rem;
  margin-bottom: var(--space-4);
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  box-shadow: var(--neu-inset-700);
}
.card h3 { margin-bottom: var(--space-3); }
.card p { font-size: var(--fs-sm); }

/* Carte "creuse" — panneau enfoncé dans la surface, pour varier le rythme visuel */
.card-inset {
  background: var(--bg-elevated);
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--neu-inset-700);
}
.card-inset p { color: var(--text-primary); }
.card-inset .tag { margin-bottom: var(--space-3); }

/* ---------- Hero avec image de fond : parallaxe + entrée caméra 3D ---------- */
.hero-parallax-bg {
  will-change: transform;
  transform: scale(1.15);
}
.hero-parallax-fg { will-change: transform, opacity; }

/* ---------- Timeline (méthode) ---------- */
.timeline { position: relative; display: flex; flex-direction: column; gap: var(--space-8); margin-top: var(--space-12); }
.tl-step { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 64px 1fr; gap: var(--space-6); align-items: center; }
.tl-center { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.tl-dot { width: 52px; height: 52px; border-radius: 50%; background: var(--pe-grad); display: grid; place-items: center; font-size: 1.3rem; box-shadow: var(--btn-raised); }
.tl-num { font-family: var(--font-title); font-size: var(--fs-xs); color: var(--text-muted); letter-spacing: .1em; }
.tl-card {
  background: var(--bg-elevated); border: none; border-radius: var(--radius-md); padding: var(--space-6);
  box-shadow: var(--neu-raised-600), 0 0 0 1px rgba(255,255,255,0);
  transition: box-shadow var(--dur-base) var(--ease-out);
}
.tl-card:hover {
  box-shadow: -10px -10px 22px var(--neu-light-600), 14px 14px 30px var(--neu-dark-600),
    0 0 0 1.5px rgba(246,160,73,.55), 0 0 26px rgba(246,160,73,.28);
}
.tl-card-tag { font-size: var(--fs-xs); color: var(--accent-primary); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 6px; }
.tl-empty {}

@media (max-width: 760px) {
  .tl-step { grid-template-columns: 52px 1fr; }
  .tl-step .tl-left, .tl-step .tl-right { grid-column: 2; }
  .tl-step .tl-left.tl-empty, .tl-step .tl-right.tl-empty { display: none; }
  .tl-center { grid-row: 1 / span 2; grid-column: 1; }
}

/* ---------- FAQ accordion ---------- */
.faq-list { display: flex; flex-direction: column; gap: var(--space-4); margin-top: var(--space-8); }
.faq-item { background: var(--bg-elevated); border: none; border-radius: var(--radius-md); box-shadow: var(--neu-raised-600); overflow: hidden; transition: box-shadow var(--dur-base); }
.faq-item.is-open { box-shadow: var(--neu-inset-600); }
.faq-q {
  width: 100%; text-align: left; background: none; border: none; color: var(--text-primary);
  padding: var(--space-6); font-family: var(--font-title); font-size: var(--fs-lg); font-weight: 700;
  display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); cursor: pointer;
  min-height: 44px;
}
.faq-q .plus { transition: transform var(--dur-base) var(--ease-out); flex-shrink: 0; }
.faq-item.is-open .plus { transform: rotate(45deg); }
.faq-a-wrap { max-height: 0; overflow: hidden; transition: max-height var(--dur-slow) var(--ease-out); }
.faq-a { padding: 0 var(--space-6) var(--space-6); color: var(--text-secondary); font-size: var(--fs-sm); }

/* ---------- Forms ---------- */
.form-field { margin-bottom: var(--space-6); }
.form-field label { display: block; font-size: var(--fs-sm); font-weight: 700; margin-bottom: var(--space-2); color: var(--text-primary); }
.form-field .req { color: var(--accent-secondary); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: 0.85rem 1rem; border-radius: var(--radius-md);
  border: none; background: var(--bg-elevated); box-shadow: var(--neu-inset-700);
  color: var(--text-primary); font-family: var(--font-body); font-size: var(--fs-base); min-height: 48px;
}
.form-field textarea { min-height: 140px; resize: vertical; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: 2px solid var(--accent-primary); outline-offset: 2px;
}
.form-field .helper { font-size: var(--fs-xs); color: var(--text-muted); margin-top: 6px; }
.form-status { margin-top: var(--space-4); font-size: var(--fs-sm); font-weight: 700; }
.form-status[data-state="success"] { color: #4ade80; }
.form-status[data-state="error"] { color: var(--pe-rouge); }

.form-field-checkbox { margin-bottom: var(--space-6); }
.form-field-checkbox label { display: flex; align-items: flex-start; gap: 10px; font-size: var(--fs-xs); color: var(--text-secondary); cursor: pointer; line-height: 1.5; }
.form-field-checkbox input[type="checkbox"] { flex-shrink: 0; width: 18px; height: 18px; margin-top: 2px; accent-color: var(--accent-primary); cursor: pointer; }
.form-field-checkbox a { color: var(--accent-primary); }

/* ---------- Portfolio ---------- */
.pf-filters { display: flex; flex-wrap: wrap; gap: var(--space-3); margin: var(--space-8) 0; }
.pf-filter-btn {
  padding: 0.6rem 1.3rem; border-radius: var(--radius-full); border: none;
  background: var(--bg-elevated); box-shadow: var(--neu-raised-600);
  color: var(--text-secondary); font-weight: 700; font-size: var(--fs-sm); cursor: pointer; min-height: 44px;
  transition: box-shadow var(--dur-fast), color var(--dur-fast);
}
.pf-filter-btn.active, .pf-filter-btn:hover { box-shadow: var(--neu-inset-600); color: var(--accent-primary); }

.pf-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
@media (max-width: 900px) { .pf-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .pf-grid { grid-template-columns: 1fr; } }

.pf-card {
  border-radius: var(--radius-lg); overflow: hidden; background: var(--bg-elevated);
  border: none; box-shadow: var(--neu-raised-600); cursor: pointer;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.pf-card:hover { transform: translateY(-6px); box-shadow: -10px -10px 22px var(--neu-light-600), 16px 16px 32px var(--neu-dark-600); }
.pf-card.is-hidden { display: none; }
.pf-img-wrap { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--bg-elevated); }
.pf-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease-out); }
.pf-card:hover .pf-img-wrap img { transform: scale(1.06); }
.pf-card[data-cat="graph"] .pf-img-wrap img { object-fit: contain; padding: var(--space-6); }
.pf-badge { position: absolute; top: var(--space-3); left: var(--space-3); font-size: 0.68rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; padding: 4px 10px; border-radius: var(--radius-full); background: rgba(15,15,26,0.75); border: 1px solid var(--border-strong); }
.pf-body { padding: var(--space-6); }
.pf-body h3 { font-size: var(--fs-lg); margin-bottom: var(--space-2); }
.pf-body p { font-size: var(--fs-sm); margin-bottom: var(--space-3); }
.pf-tags { display: flex; flex-wrap: wrap; gap: 6px; }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(10,10,18,0.85); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center; padding: var(--space-6);
  z-index: var(--z-modal); opacity: 0; visibility: hidden; transition: opacity var(--dur-base), visibility var(--dur-base);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal { background: var(--bg-elevated); border-radius: var(--radius-lg); max-width: 720px; width: 100%; max-height: 88vh; overflow-y: auto; position: relative; box-shadow: var(--neu-raised-600), 0 40px 90px rgba(0,0,0,.6); }
.modal-close { position: absolute; top: var(--space-4); right: var(--space-4); width: 44px; height: 44px; border-radius: 50%; background: var(--bg-elevated); box-shadow: var(--neu-raised-600); border: none; color: #fff; font-size: 1.1rem; cursor: pointer; z-index: 2; }
.modal-close:active { box-shadow: var(--neu-inset-600); }
.modal-hero-img { width: 100%; max-height: 340px; object-fit: cover; }
.modal-body { padding: var(--space-8); }

/* ---------- Reveal-on-scroll (GSAP hooks, CSS fallback) ---------- */
[data-reveal] { opacity: 0; transform: translateY(24px); }
.js-reveal-ready [data-reveal] { transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); }
[data-reveal].is-revealed { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}

/* ---------- À propos : badges flottants devant la photo ---------- */
.about-photo-wrap { position: relative; }
.float-chip {
  position: absolute;
  display: flex; align-items: center; gap: 6px;
  padding: 10px 16px;
  border-radius: var(--radius-full);
  background: var(--bg-elevated);
  box-shadow: var(--neu-raised-700);
  font-family: var(--font-title); font-size: var(--fs-sm); font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  animation: float-chip-bob 5s ease-in-out infinite;
}
.float-chip-1 { top: -18px; left: -18px; animation-delay: 0s; }
.float-chip-2 { top: 40%; right: -22px; animation-delay: 1.2s; }
.float-chip-3 { bottom: -16px; left: 10%; animation-delay: 2.4s; }
@keyframes float-chip-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@media (max-width: 700px) {
  .float-chip { position: static; margin: 8px 8px 0 0; display: inline-flex; animation: none; }
  .about-photo-wrap { display: flex; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  .float-chip { animation: none; }
}