/* =============================================================
   Le Diplomate Café — Base
   Shared tokens, reset, nav, mobile menu, footer, utilities.
   Required by every page. Load before any page-specific CSS.
   ============================================================= */


/* ── Design tokens ─────────────────────────────────────────── */
:root {
  /* Locked palette */
  --color-bg-base:       #101820;
  --color-bg-night:      #00263A;
  --color-bg-plum:       #41273B;
  --color-bg-surface:    #1C2A35;
  --color-accent-gold:   #FECB8B;
  --color-accent-sand:   #C6A181;
  --color-text-primary:  #F0EBE1;
  --color-text-muted:    #98A4AE;
  --color-border:        rgba(198, 161, 129, 0.20);
  --color-border-subtle: rgba(240, 235, 225, 0.07);

  /* Typography */
  --font-display: 'Cormorant Display', Georgia, serif;
  --font-ui:      'Nexa', system-ui, sans-serif;

  /* Layout */
  --nav-height:    72px;
  --max-width:     1200px;
  --pad-section-v: 120px;
  --pad-section-h: 48px;

  /* Easing */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Animation durations */
  --dur-nav:  0.5s;
  --dur-menu: 0.45s;
  --dur-cta:  0.6s;
}


/* ── Nexa font faces ─────────────────────────────────────────── */
@font-face {
  font-family: 'Nexa';
  src: url('../assets/fonts/nexa-light.otf') format('opentype');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Nexa';
  src: url('../assets/fonts/nexa-regular.otf') format('opentype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Nexa';
  src: url('../assets/fonts/nexa-bold.otf') format('opentype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}


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

html { scroll-behavior: smooth; }

html, body { background: var(--color-bg-base); }

body {
  font-family: var(--font-ui);
  font-weight: 300;
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.menu-open { overflow: hidden; }

img  { display: block; max-width: 100%; }
a    { text-decoration: none; color: inherit; }


/* ── Navigation ─────────────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 52px;
  background: transparent;
  transition:
    background 0.5s ease,
    border-color 0.5s ease,
    opacity var(--dur-nav) ease;
}

/* Homepage: hidden until hero sequence completes */
.site-nav.hero-nav {
  opacity: 0;
}
.site-nav.hero-nav.is-visible {
  opacity: 1;
}

/* Inner pages: always visible */
.site-nav.inner-nav {
  opacity: 1;
}

/* Solid nav on scroll */
.site-nav.is-scrolled {
  background: rgba(16, 24, 32, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-subtle);
}

.nav-group {
  display: flex;
  align-items: center;
  gap: 36px;
  flex: 1;
}
.nav-left  { justify-content: flex-end; }
.nav-right { justify-content: flex-start; }

.nav-link {
  position: relative;
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  opacity: 0.78;
  transition: color 0.25s ease, opacity 0.25s ease;
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent-gold);
  transition: width 0.32s var(--ease-out);
}
.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--color-accent-gold);
  opacity: 1;
}
.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  width: 100%;
}

.nav-logo {
  flex-shrink: 0;
  margin: 0 40px;
}

.nav-logo-img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  opacity: 0.88;
  transition: opacity 0.25s ease;
}
.nav-logo-img:hover { opacity: 1; }

/* Hamburger — hidden on desktop */
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
}

.hamburger-line {
  display: block;
  height: 1px;
  background: var(--color-text-primary);
  transition:
    transform 0.35s ease,
    opacity   0.25s ease,
    width     0.25s ease;
}
.hamburger-line:nth-child(1) { width: 22px; }
.hamburger-line:nth-child(2) { width: 14px; }
.hamburger-line:nth-child(3) { width: 22px; }

.nav-hamburger[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  width: 22px;
}
.nav-hamburger[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
  width: 0;
}
.nav-hamburger[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  width: 22px;
}


/* ── Mobile overlay menu ─────────────────────────────────────── */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(16, 24, 32, 0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-menu) ease;
}
.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 44px;
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(28px, 9vw, 52px);
  letter-spacing: 0.05em;
  color: var(--color-text-primary);
  opacity: 0.88;
  transform: translateY(22px);
  transition:
    color     0.2s ease,
    opacity   0.2s ease,
    transform 0.55s var(--ease-out);
}
.mobile-menu.is-open .mobile-nav-link:nth-child(1) { transform: translateY(0); transition-delay: 0.08s; }
.mobile-menu.is-open .mobile-nav-link:nth-child(2) { transform: translateY(0); transition-delay: 0.15s; }
.mobile-menu.is-open .mobile-nav-link:nth-child(3) { transform: translateY(0); transition-delay: 0.22s; }
.mobile-menu.is-open .mobile-nav-link:nth-child(4) { transform: translateY(0); transition-delay: 0.29s; }
.mobile-nav-link:hover,
.mobile-nav-link[aria-current="page"] {
  color: var(--color-accent-gold);
  opacity: 1;
}


/* ── Layout ──────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--pad-section-h);
}

.section {
  padding: var(--pad-section-v) 0;
}


/* ── Typography components ───────────────────────────────────── */
.section-label {
  display: block;
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(30px, 3.8vw, 52px);
  line-height: 1.2;
  letter-spacing: 0.03em;
  color: var(--color-text-primary);
  margin-bottom: 24px;
}

.section-lead {
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.01em;
  color: var(--color-text-muted);
  max-width: 520px;
}

.gold-rule {
  width: 36px;
  height: 1px;
  background: var(--color-accent-gold);
  margin-bottom: 32px;
  opacity: 0.7;
}


/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 15px 44px;
  cursor: pointer;
  transition:
    color            0.25s ease,
    background-color 0.25s ease,
    border-color     0.25s ease;
}

.btn-primary {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-accent-gold);
  color: var(--color-accent-gold);
  background: transparent;
  z-index: 0;
  transition:
    color 0.38s var(--ease-out);
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-accent-gold);
  transform: translateX(-101%);
  transition: transform 0.42s var(--ease-out);
  z-index: -1;
}
.btn-primary:hover::before {
  transform: translateX(0);
}
.btn-primary:hover {
  color: var(--color-bg-base);
}

.btn-secondary {
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  background: transparent;
}
.btn-secondary:hover {
  border-color: var(--color-accent-sand);
  color: var(--color-accent-sand);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: gap 0.25s ease;
}
.btn-ghost::after {
  content: '→';
  font-size: 13px;
  letter-spacing: 0;
  transition: transform 0.25s ease;
}
.btn-ghost:hover {
  gap: 16px;
}
.btn-ghost:hover::after {
  transform: translateX(3px);
}


/* ── Page header (inner pages) ───────────────────────────────── */
.page-header {
  position: relative;
  padding-top: calc(var(--nav-height) + 112px);
  padding-bottom: 96px;
  background: var(--color-bg-night);
  border-bottom: 1px solid var(--color-border-subtle);
}

/* Scroll cue — thin animated gold line at bottom of header */
.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--pad-section-h);
  width: 40px;
  height: 2px;
  background: var(--color-accent-gold);
  opacity: 0.55;
}

.page-header .section-label {
  margin-bottom: 16px;
}

.page-header-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(36px, 5vw, 72px);
  line-height: 1.15;
  letter-spacing: 0.04em;
  color: var(--color-text-primary);
}

.page-header-lead {
  margin-top: 20px;
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-muted);
  max-width: 520px;
}


/* ── Scroll reveal ───────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity   0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal.delay-1 { transition-delay: 0.10s; }
.reveal.delay-2 { transition-delay: 0.20s; }
.reveal.delay-3 { transition-delay: 0.30s; }
.reveal.delay-4 { transition-delay: 0.42s; }
.reveal.delay-5 { transition-delay: 0.55s; }


/* ── Placeholder content — unconfirmed / pending data ────────── */
.info-placeholder {
  font-style: italic;
  color: var(--color-text-muted);
  opacity: 0.42;
  letter-spacing: 0.02em;
}


/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-bg-night);
  padding: 72px 0 40px;
  border-top: 1px solid var(--color-border-subtle);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: start;
  gap: 48px;
}

.footer-col-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.footer-logo-img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  opacity: 0.65;
  transition: opacity 0.25s ease;
}
.footer-logo-img:hover { opacity: 0.9; }

.footer-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.footer-nav-link {
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  opacity: 0.8;
  transition: color 0.2s ease, opacity 0.2s ease;
}
.footer-nav-link:hover {
  color: var(--color-accent-gold);
  opacity: 1;
}

.footer-heading {
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  margin-bottom: 16px;
}

.footer-text {
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text-muted);
  opacity: 0.85;
}

.footer-bottom {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-col-right {
  text-align: right;
}

.footer-addr-link {
  color: inherit;
  text-decoration: none;
  transition: color 0.22s ease;
}
.footer-addr-link:hover {
  color: var(--color-accent-gold);
}

.footer-copy {
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.10em;
  color: rgba(152, 164, 174, 0.4);
}


/* ── Page transitions ────────────────────────────────────────── */
/*
   inner pages fade in via CSS (render-blocking, no FOUC).
   exit is handled in nav.js / hero.js via JS opacity transition.
*/
body.page-inner {
  animation: pageEnter 0.28s ease-out forwards;
}

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


/* ── Reduced motion ──────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  body.page-inner { animation: none !important; }
  .reveal,
  .site-nav,
  .mobile-menu,
  .mobile-nav-link,
  .btn,
  .btn-primary::before,
  .btn-ghost::after,
  .nav-link::after {
    transition-duration: 0.01ms !important;
    transform: none !important;
  }
}


/* ── Mobile ──────────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --pad-section-v: 80px;
    --pad-section-h: 24px;
  }

  .page-header {
    padding-top: calc(var(--nav-height) + 72px);
    padding-bottom: 64px;
  }

  .site-nav {
    padding: 0 24px;
  }

  .nav-group {
    display: none;
  }

  .nav-logo {
    margin: 0 auto;
  }

  .nav-hamburger {
    display: flex;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .footer-col-center {
    align-items: flex-start;
  }

  .footer-nav {
    align-items: flex-start;
  }

  .footer-col-right {
    text-align: left;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}