/* === Tour Eiffel 2000 — Design System === */

:root {
  /* Light (papier) */
  --bg: #FAF8F4;
  --bg-elevated: #FFFFFF;
  --bg-subtle: #F2EEE5;
  --ink: #1A1814;
  --ink-soft: #4A4640;
  --ink-mute: #8A847A;
  --line: #E8E2D5;
  --line-soft: #EFEAE0;
  --accent: #8B7355;
  --accent-deep: #6B5840;
  --accent-soft: #C9B79A;

  /* Type */
  --serif: 'Cormorant Garamond', 'EB Garamond', Georgia, serif;
  --sans: 'Inter', -apple-system, system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Scale */
  --step--1: clamp(0.78rem, 0.76rem + 0.1vw, 0.84rem);
  --step-0: clamp(0.95rem, 0.92rem + 0.15vw, 1.05rem);
  --step-1: clamp(1.15rem, 1.1rem + 0.25vw, 1.3rem);
  --step-2: clamp(1.45rem, 1.35rem + 0.5vw, 1.75rem);
  --step-3: clamp(2rem, 1.7rem + 1.2vw, 2.8rem);
  --step-4: clamp(3rem, 2.4rem + 2.5vw, 4.5rem);
  --step-5: clamp(4rem, 3rem + 4vw, 7rem);
  --step-6: clamp(5rem, 3.5rem + 7vw, 11rem);

  /* Layout */
  --maxw: 1440px;
  --pad-x: clamp(20px, 4vw, 80px);
  --radius: 2px;

  /* Motion */
  --ease: cubic-bezier(.2, .6, .2, 1);
  --t: 420ms;
}

[data-theme="dark"] {
  --bg: #0E0D0B;
  --bg-elevated: #16140F;
  --bg-subtle: #1C1A15;
  --ink: #F0EBE0;
  --ink-soft: #C8C2B5;
  --ink-mute: #807A6F;
  --line: #2A2620;
  --line-soft: #1F1C17;
  --accent: #C4A574;
  --accent-deep: #D9BE8D;
  --accent-soft: #6B5840;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'ss01', 'cv11';
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

/* === Typography === */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.eyebrow {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.serif-italic { font-family: var(--serif); font-style: italic; }

/* === Layout primitives === */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--pad-x);
}

.rule {
  height: 1px;
  background: var(--line);
  width: 100%;
}

/* === Header === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklch, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: background var(--t) var(--ease);
}
.site-header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  height: 76px;
}
.brand {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.brand__title {
  font-family: var(--serif);
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}
.brand__sub {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: 4px;
}
.nav {
  display: flex;
  gap: 36px;
  justify-content: center;
}
.nav a {
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  position: relative;
  padding: 6px 2px;
  transition: color var(--t) var(--ease);
}
.nav a:hover, .nav a.active { color: var(--ink); }
.nav a.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--accent);
}
.header-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 18px;
}
.icon-btn {
  width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px;
  color: var(--ink-soft);
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
  position: relative;
}
.icon-btn:hover { background: var(--bg-subtle); color: var(--ink); }
.cart-count {
  position: absolute;
  top: 4px; right: 4px;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 9px;
  width: 16px; height: 16px;
  border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--bg);
  border-radius: var(--radius);
  transition: all var(--t) var(--ease);
}
.btn:hover { background: transparent; color: var(--ink); }
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn--ghost:hover { background: var(--ink); color: var(--bg); }
.btn--minimal {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  padding: 10px 18px;
  font-size: 12px;
}
.btn--minimal:hover { border-color: var(--ink); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 4px;
  transition: gap var(--t) var(--ease), color var(--t) var(--ease);
}
.link-arrow:hover { gap: 16px; color: var(--accent-deep); }

/* === Footer === */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 80px 0 40px;
  margin-top: 120px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}
.footer-grid h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 20px;
  font-weight: 500;
}
.footer-grid ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-grid a { color: var(--ink-soft); font-size: 14px; }
.footer-grid a:hover { color: var(--accent-deep); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-mute);
  text-transform: uppercase;
}

/* === Reusable === */
.section { padding: clamp(80px, 12vw, 160px) 0; }
.section--tight { padding: clamp(60px, 8vw, 100px) 0; }

.section-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: end;
  margin-bottom: 80px;
}
.section-head__lede {
  font-family: var(--serif);
  font-size: var(--step-2);
  font-style: italic;
  color: var(--ink-soft);
  line-height: 1.3;
  text-wrap: pretty;
}

@media (max-width: 800px) {
  .section-head { grid-template-columns: 1fr; gap: 24px; }
  .nav { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .site-header__inner { grid-template-columns: 1fr auto; }
  .nav { display: none; }
}

/* === Image placeholder for missing images === */
.img-frame {
  position: relative;
  background: var(--bg-subtle);
  overflow: hidden;
}
.img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 800ms var(--ease), opacity 600ms var(--ease);
}
.img-frame--hover:hover img { transform: scale(1.04); }
.img-meta {
  position: absolute;
  bottom: 12px; left: 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: white;
  mix-blend-mode: difference;
  text-transform: uppercase;
}

/* selection */
::selection { background: var(--accent); color: var(--bg); }

/* fade-in */
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.fade-up { animation: fadeUp 800ms var(--ease) both; }