/* ═══════════════════════════════════════════════════════
   VAULTAG — Luxury Design System
   Inspired by: Patek Philippe, Rolex, Cartier
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,300;0,400;0,500;1,300;1,400&family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400;1,600&family=Raleway:wght@200;300;400;500;600&display=swap');

/* ─── RESET & BASE ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

:root {
  --ivory:      #F7F4EE;
  --ivory-deep: #EDE9E0;
  --parchment:  #D9D2C2;
  --gold:       #9B7D3A;
  --gold-light: #C4A052;
  --gold-pale:  #E8D5A0;
  --obsidian:   #0D0D0D;
  --charcoal:   #1A1A1A;
  --ink:        #2C2C2C;
  --ash:        #6B6860;
  --mist:       #9C9890;

  --serif-display: 'Playfair Display', Georgia, serif;
  --serif-body:    'Cormorant Garamond', Georgia, serif;
  --sans:          'Raleway', sans-serif;

  --transition: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.2s ease;

  --max-width: 1280px;
  --section-pad: 9rem 5rem;
}

body {
  background: var(--ivory);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ─── TYPOGRAPHY ─── */
h1, h2, h3 { font-family: var(--serif-display); font-weight: 400; line-height: 1.1; }
h4, h5, h6 { font-family: var(--sans); font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; }

p { font-family: var(--serif-body); font-weight: 300; font-size: 1.1rem; line-height: 1.85; color: var(--ash); }

/* ─── UTILITY ─── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 5rem; }
.text-gold { color: var(--gold); }
.text-mist { color: var(--mist); }

/* ─── NAVIGATION ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5rem;
  background: rgba(247, 244, 238, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--parchment);
  transition: box-shadow var(--transition);
}

.nav.scrolled { box-shadow: 0 2px 40px rgba(0,0,0,0.06); }

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
}

.nav-logo img { height: 90px; width: auto; }

.nav-brand {
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: 1.45rem;
  color: var(--obsidian);
  letter-spacing: 0.03em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 3rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ash);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.nav-links a:hover { color: var(--gold); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--obsidian); }

.nav-cta {
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ivory);
  background: var(--obsidian);
  border: none;
  padding: 0.75rem 1.8rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background var(--transition-fast);
}

.nav-cta:hover { background: var(--gold); }

/* ─── SECTION TAG ─── */
.section-tag {
  font-family: var(--sans);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.8rem;
}

.section-tag::before {
  content: '';
  display: block;
  width: 30px;
  height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}

/* ─── DIVIDER ─── */
.divider {
  width: 40px;
  height: 1px;
  background: var(--gold);
  margin: 2rem 0;
}

.divider.center { margin: 2rem auto; }

/* ─── BUTTONS ─── */
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 1rem 2.5rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.btn-dark {
  background: var(--obsidian);
  color: var(--ivory);
}

.btn-dark:hover { background: var(--gold); }

.btn-outline {
  background: transparent;
  color: var(--obsidian);
  border: 1px solid var(--obsidian);
}

.btn-outline:hover {
  background: var(--obsidian);
  color: var(--ivory);
}

.btn-gold {
  background: var(--gold);
  color: var(--ivory);
}

.btn-gold:hover { background: var(--obsidian); }

/* ─── FOOTER ─── */
.footer {
  background: var(--obsidian);
  color: var(--mist);
  padding: 5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 3rem;
}

.footer-brand-logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.footer-brand-logo img { height: 32px; opacity: 0.85; }

.footer-brand-name {
  font-family: var(--serif-display);
  font-size: 1.3rem;
  color: var(--ivory);
}

.footer-tagline {
  font-family: var(--serif-body);
  font-size: 1rem;
  color: var(--mist);
  line-height: 1.8;
  max-width: 280px;
}

.footer-col h5 {
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--ivory);
  margin-bottom: 1.5rem;
}

.footer-col a {
  display: block;
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--mist);
  text-decoration: none;
  margin-bottom: 0.8rem;
  transition: color var(--transition-fast);
}

.footer-col a:hover { color: var(--gold-light); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copy {
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(156,152,144,0.6);
}

/* ─── ANIMATIONS ─── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.96); }
  to   { opacity: 1; transform: scale(1); }
}

.animate-up   { opacity: 0; animation: fadeUp 0.9s cubic-bezier(0.4,0,0.2,1) forwards; }
.animate-fade { opacity: 0; animation: fadeIn 1s ease forwards; }

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  :root { --section-pad: 6rem 3rem; }
  .container { padding: 0 3rem; }
  .nav { padding: 0 3rem; }
  .footer { padding: 4rem 3rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  :root { --section-pad: 5rem 2rem; }
  .container { padding: 0 1.5rem; }
  .nav { padding: 0 1.5rem; }
  .nav-links { display: none; }
  .footer { padding: 3rem 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}