/* ============================================================
   shared.css — Auréa Gems Investment
   Styles partagés entre toutes les pages : nav, footer, boutons.
   Charger APRÈS tokens.css et base.css.
   ============================================================ */

/* ----------------------------------------------------------
   VARIABLES locales (couleurs nommées pour lisibilité)
   ---------------------------------------------------------- */
:root {
  --obsidienne: #0C0B09;
  --papier:     #F2EFE8;
  --encre:      #1A1712;
  --or:         #D4A017;
  --or-pale:    #B8860B;
  --texte:      #A09080;
  --texte-doux: #7A6E64;
  --texte-mute: #4A4038;
  --texte-mini: #776C60;
  --regle:      rgba(212,160,23,0.12);
  --nav-h:      72px;
}

/* ----------------------------------------------------------
   POLICES (si pas chargées via <link> dans le <head>)
   ---------------------------------------------------------- */

/* ----------------------------------------------------------
   NAV — fixe, top, full-width
   ---------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(12,11,9,0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--regle);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Logo / marque */
.nav-brand {
  text-decoration: none;
  flex-shrink: 0;
  line-height: 1;
}
.nav-brand-mark {
  display: block;
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--papier);
  letter-spacing: 0.025em;
}
.nav-brand-mark em {
  font-style: italic;
  color: var(--or);
}
.nav-brand-sub {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #8A7E70;
  margin-top: 2px;
}

/* Menu desktop */
.nav__menu {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  margin-left: auto;
}
.nav__menu a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--texte-doux);
  text-decoration: none;
  padding: 0.4rem 0.7rem;
  border-radius: 2px;
  transition: color 0.2s, background 0.2s;
}
.nav__menu a:hover {
  color: var(--papier);
  background: rgba(242,239,232,0.06);
}
.nav__menu a.is-active {
  color: var(--or);
}

/* CTA desktop */
.nav__cta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--obsidienne);
  background: var(--or);
  text-decoration: none;
  padding: 0.5rem 1.1rem;
  border-radius: 2px;
  white-space: nowrap;
  transition: opacity 0.2s;
  flex-shrink: 0;
}
.nav__cta:hover { opacity: 0.85; }

/* Instagram icon — nav (desktop only) */
.nav__instagram {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8A7E70;
  transition: color 0.2s;
  flex-shrink: 0;
  padding: 0 0.15rem;
}
.nav__instagram:hover { color: var(--or); }

/* Hamburger mobile */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--texte-doux);
  transition: all 0.25s ease;
  transform-origin: center;
}
.nav__hamburger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__hamburger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Drawer mobile */
.nav__drawer {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: var(--obsidienne);
  border-bottom: 1px solid rgba(212,160,23,0.15);
  padding: 1.5rem 32px 2rem;
  display: flex;
  flex-direction: column;
  gap: 0;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.24s ease, opacity 0.24s ease;
  z-index: 99;
}
.nav__drawer.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}
.nav__drawer a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--texte-doux);
  text-decoration: none;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(242,239,232,0.05);
  transition: color 0.2s;
}
.nav__drawer a:last-child { border-bottom: none; }
.nav__drawer a:hover,
.nav__drawer a.is-active { color: var(--papier); }
.nav__drawer .drawer-cta {
  margin-top: 1.25rem;
  color: var(--or);
  border-bottom: none;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(212,160,23,0.1);
}

/* ----------------------------------------------------------
   BOUTONS
   ---------------------------------------------------------- */
.btn {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  text-decoration: none;
  padding: 0.85rem 1.75rem;
  border-radius: 2px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  line-height: 1;
}
.btn-primary {
  background: var(--or);
  color: var(--obsidienne);
}
.btn-primary:hover { opacity: 0.88; }

.btn-ghost {
  border: 1px solid rgba(212,160,23,0.3);
  color: var(--texte-doux);
  background: transparent;
}
.btn-ghost:hover {
  border-color: var(--or);
  color: var(--or);
}
.btn-ghost-dark {
  border: 1px solid rgba(26,23,18,0.25);
  color: var(--texte-mute);
  background: transparent;
}
.btn-ghost-dark:hover {
  border-color: var(--or-pale);
  color: var(--or-pale);
}

/* ----------------------------------------------------------
   FOOTER
   ---------------------------------------------------------- */
.footer {
  background: var(--obsidienne);
  border-top: 1px solid rgba(242,239,232,0.05);
  padding: 2rem 0;
}
.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--texte-mini);
}
.footer__links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer__links a {
  color: var(--texte-mini);
  text-decoration: none;
  transition: color 0.2s;
}
.footer__links a:hover { color: var(--or); }
.footer-icon {
  display: flex;
  align-items: center;
}

/* ----------------------------------------------------------
   REVEAL — fade-in on scroll
   ---------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal][data-visible] {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ----------------------------------------------------------
   RESPONSIVE
   ---------------------------------------------------------- */
@media (max-width: 768px) {
  .nav-inner { padding: 0 20px; }
  .nav__menu, .nav__cta, .nav__instagram { display: none; }
  .nav__hamburger { display: flex; }
  .nav__drawer { padding: 1.5rem 20px 2rem; }
  .footer__inner { flex-direction: column; align-items: flex-start; gap: 0.75rem; padding: 0 20px; }
}

/* ----------------------------------------------------------
   SNIPPET JS mobile nav (inlinable pattern)
   ---------------------------------------------------------- */
