/* =====================================================================
   ATELIER 360 — COMPOSANTS (boutons, header, footer, cartes, placeholders)
   ===================================================================== */

/* ---------- Boutons ---------- */
.btn {
  --btn-py: .85rem;
  --btn-px: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: var(--btn-py) var(--btn-px);
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: transform var(--t-base), box-shadow var(--t-base),
              background var(--t-base), border-color var(--t-base), color var(--t-base);
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn svg { width: 1.05em; height: 1.05em; }

/* Primaire : pill indigo solide + glow extérieur (Plan 3) */
.btn--primary {
  background: var(--indigo);
  color: #fff;
  box-shadow: var(--glow-indigo);
}
.btn--primary:hover {
  background: var(--indigo-bright);
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(129,140,248,.5), 0 14px 50px -10px rgba(79,70,229,.75);
}

/* Secondaire : ghost border indigo */
.btn--ghost {
  background: var(--surface-glass);
  color: var(--text);
  border: 1px solid var(--border-indigo);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.btn--ghost:hover {
  background: var(--indigo-soft);
  border-color: var(--indigo-bright);
  transform: translateY(-2px);
}

/* Tertiaire : texte souligné */
.btn--text {
  padding: .4rem .2rem;
  color: var(--text);
  border-radius: 4px;
  text-decoration: underline;
  text-underline-offset: 5px;
  text-decoration-color: var(--indigo-bright);
  text-decoration-thickness: 1.5px;
}
.btn--text:hover { color: var(--indigo-bright); }

.btn--lg { --btn-py: 1.05rem; --btn-px: 1.9rem; font-size: var(--fs-body); }
.btn--block { width: 100%; }

.btn-microcopy {
  display: block;
  margin-top: .7rem;
  font-size: var(--fs-xs);
  color: var(--text-faint);
}

/* ---------- En-tête / navigation ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  transition: background var(--t-base), border-color var(--t-base), backdrop-filter var(--t-base);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(6, 7, 10, .72);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border-bottom-color: var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand { display: inline-flex; align-items: center; gap: .65rem; font-family: var(--font-display); font-weight: 700; color: var(--text); }
.brand img { width: 34px; height: 34px; }
.brand span { font-size: 1.12rem; letter-spacing: -.02em; }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--t-fast);
  position: relative;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-links a[aria-current="page"]::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  width: 100%; height: 2px; border-radius: 2px; background: var(--grad-brand);
}

.nav-cta { display: flex; align-items: center; gap: .8rem; }

/* Burger mobile */
.nav-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; border-radius: var(--r-sm); color: var(--text); }
.nav-toggle:hover { background: var(--surface-glass); }
.nav-toggle svg { width: 24px; height: 24px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

/* ---------- Pied de page ---------- */
.site-footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding-block: var(--space-8) var(--space-6);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
  gap: 2.5rem;
}
.footer-brand .brand { margin-bottom: 1rem; }
.footer-brand p { color: var(--text-muted); font-size: var(--fs-sm); max-width: 32ch; }
.footer-col h4 { font-family: var(--font-body); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: .12em; color: var(--text-faint); margin-bottom: 1.1rem; }
.footer-col ul { display: flex; flex-direction: column; gap: .7rem; }
.footer-col a { font-size: var(--fs-sm); color: var(--text-muted); transition: color var(--t-fast); }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between;
  font-size: var(--fs-xs); color: var(--text-faint);
}
.footer-bottom a:hover { color: var(--text-muted); }

/* Footer responsive : on empile les colonnes avant que 5 ne se serrent trop */
@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ---------- Carte glass générique ---------- */
.card {
  position: relative;
  background: var(--grad-card), var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: clamp(1.4rem, 1rem + 1.5vw, 2rem);
  box-shadow: var(--shadow-card);
  transition: transform var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); }

/* ---------- Badge / pastille ---------- */
.badge {
  display: inline-flex; align-items: center; gap: .45rem;
  padding: .35rem .75rem;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: .02em;
  border: 1px solid var(--border-strong);
  background: var(--surface-glass);
  color: var(--text-muted);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--indigo-bright); box-shadow: 0 0 8px var(--indigo-bright); }
.badge .dot--live { background: #34d399; box-shadow: 0 0 8px #34d399; animation: pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: .4; } }

/* ---------- Placeholders « à confirmer par Eddy » (Plan 1 §8 / Plan 3 §9) ---------- */
/* [TEL] et [STATUT_INSCRIPTION] : visiblement provisoires, jamais pris pour du définitif. */
.placeholder {
  border-bottom: 1px dashed var(--gold);
  color: var(--gold);
  cursor: help;
}

/* ---------- Navigation responsive ---------- */
.nav-inner { display: flex; align-items: center; gap: 2rem; }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav-inner {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    flex-direction: column;
    justify-content: flex-start;
    gap: 0;
    padding: 1.5rem var(--gutter) 2.5rem;
    background: rgba(6, 7, 10, .96);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-top: 1px solid var(--border);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--t-base), transform var(--t-base);
    overflow-y: auto;
  }
  .nav-inner.is-open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }
  .nav-links li { border-bottom: 1px solid var(--border); }
  .nav-links a { display: block; padding: 1.1rem .2rem; font-size: 1.15rem; }
  .nav-links a[aria-current="page"]::after { display: none; }
  .nav-cta { width: 100%; margin-top: 1.5rem; }
  .nav-cta .btn { width: 100%; }
  body.nav-locked { overflow: hidden; }
}

@media (max-width: 420px) {
  .brand span { font-size: 1rem; }
}