/* Rose Noir Athletics — Design System
   Style: Minimalist/Swiss structure + Immersive full-bleed moments
   Dual theme via [data-theme] on <html>, CSS custom properties only. */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --accent: #b7827a;         /* rose gold */
  --accent-soft: #cfa79e;
  --danger: #b3453f;
  --success: #4a7a5f;
  --radius: 2px;
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

[data-theme="dark"] {
  --bg: #0a0a0b;
  --surface: #131314;
  --surface2: #1c1c1e;
  --border: #2a2a2c;
  --text: #f2ede7;
  --text-muted: #948d84;
}

[data-theme="light"] {
  --bg: #f7f4ef;
  --surface: #ffffff;
  --surface2: #efe9df;
  --border: #ddd6c9;
  --text: #17150f;
  --text-muted: #6b6459;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .25s ease, color .25s ease;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 768px) { .container { padding: 0 20px; } }

h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: .01em;
  margin: 0;
}

/* ---------- Nav ---------- */
.site-nav {
  position: sticky; top: 0; z-index: 200;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-row { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.nav-logo { font-family: var(--font-display); font-size: 22px; letter-spacing: .12em; font-weight: 600; }
.nav-links { display: flex; gap: 28px; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; }
.nav-links a { color: var(--text-muted); transition: color .15s ease; padding: 4px 0; border-bottom: 1px solid transparent; }
.nav-links a:hover, .nav-links a.active { color: var(--text); border-bottom-color: var(--accent); }
.nav-actions { display: flex; align-items: center; gap: 18px; }
.icon-btn { background: none; border: none; cursor: pointer; color: var(--text); padding: 4px; display: flex; align-items: center; }
.cart-count {
  font-size: 11px; font-weight: 600; margin-left: 4px; color: var(--accent);
}
.mobile-toggle { display: none; }
@media (max-width: 860px) {
  .nav-links { display: none; }
  .mobile-toggle { display: flex; }
}

/* ---------- Hero (immersive) ---------- */
.hero {
  position: relative; height: 82vh; min-height: 520px;
  display: flex; align-items: flex-end;
  background: var(--surface2);
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transform: scale(1.02);
  transition: transform 6s ease;
}
.hero:hover .hero-bg { transform: scale(1.08); }
.hero::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.75) 0%, rgba(0,0,0,.15) 55%, rgba(0,0,0,.35) 100%);
}
.hero-content { position: relative; z-index: 2; padding: 0 32px 64px; max-width: 1240px; margin: 0 auto; width: 100%; color: #f2ede7; }
.hero-eyebrow { font-size: 12px; letter-spacing: .25em; text-transform: uppercase; color: #cfa79e; margin-bottom: 14px; }
.hero-content h1 { font-size: clamp(40px, 6vw, 76px); line-height: 1.02; max-width: 780px; color: #f7f4ef; }
.hero-sub { margin-top: 18px; max-width: 460px; color: #d8d2c9; font-size: 15px; }
.hero-cta { margin-top: 30px; display: flex; gap: 14px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; font-weight: 600;
  border-radius: var(--radius); border: 1px solid transparent; cursor: pointer;
  transition: opacity .15s ease, background .15s ease;
}
.btn-primary { background: var(--accent); color: #17110f; }
.btn-primary:hover { opacity: .88; }
.btn-outline { border-color: currentColor; color: inherit; background: transparent; }
.btn-outline:hover { background: rgba(255,255,255,.08); }
.btn-dark { background: #17150f; color: #f7f4ef; }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn-block { width: 100%; }

/* ---------- Section scaffolding (minimalist grid) ---------- */
.section { padding: 96px 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 48px; }
.section-head h2 { font-size: 34px; }
.section-head a { font-size: 12px; text-transform: uppercase; letter-spacing: .1em; color: var(--text-muted); border-bottom: 1px solid var(--border); padding-bottom: 2px; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- Product grid ---------- */
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px 24px; }
@media (max-width: 1024px) { .grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px) { .grid { grid-template-columns: repeat(2, 1fr); gap: 20px 14px; } }

.card { display: block; }
.card-img { aspect-ratio: 4/5; background: var(--surface2); overflow: hidden; position: relative; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.card:hover .card-img img { transform: scale(1.045); }
.card-name { margin-top: 14px; font-size: 13.5px; font-weight: 500; }
.card-color { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.card-price { font-size: 13px; margin-top: 6px; color: var(--accent); font-weight: 600; }

/* ---------- Category strip ---------- */
.cat-strip { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
@media (max-width: 860px) { .cat-strip { grid-template-columns: repeat(2, 1fr); } }
.cat-tile { position: relative; aspect-ratio: 3/4; background: var(--surface2); display: flex; align-items: flex-end; padding: 18px; overflow: hidden; }
.cat-tile img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .85; transition: transform .5s ease; }
.cat-tile:hover img { transform: scale(1.06); }
.cat-tile span { position: relative; z-index: 2; color: #f7f4ef; font-size: 13px; text-transform: uppercase; letter-spacing: .1em; font-weight: 600; }
.cat-tile::after { content:''; position:absolute; inset:0; background: linear-gradient(to top, rgba(0,0,0,.6), rgba(0,0,0,0) 60%); }

/* ---------- Filter bar ---------- */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 40px; }
.filter-pill-btn {
  padding: 8px 16px; font-size: 12px; letter-spacing: .06em; text-transform: uppercase;
  border: 1px solid var(--border); background: transparent; color: var(--text-muted); cursor: pointer; border-radius: var(--radius);
}
.filter-pill-btn.active, .filter-pill-btn:hover { color: var(--text); border-color: var(--text); }

/* ---------- Product detail ---------- */
.pdp { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; }
@media (max-width: 860px) { .pdp { grid-template-columns: 1fr; gap: 32px; } }
.pdp-img { aspect-ratio: 4/5; background: var(--surface2); overflow: hidden; }
.pdp-img img { width: 100%; height: 100%; object-fit: cover; }
.pdp-info h1 { font-size: 32px; margin-bottom: 6px; }
.pdp-color { color: var(--text-muted); font-size: 14px; margin-bottom: 18px; }
.pdp-price { font-size: 20px; color: var(--accent); font-weight: 600; margin-bottom: 24px; }
.pdp-desc { color: var(--text-muted); font-size: 14px; line-height: 1.7; margin-bottom: 32px; }
.size-label { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 10px; color: var(--text-muted); }
.size-grid { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.size-btn {
  min-width: 46px; padding: 10px 14px; text-align: center; font-size: 13px; font-weight: 600;
  border: 1px solid var(--border); background: transparent; color: var(--text); cursor: pointer; border-radius: var(--radius);
}
.size-btn.selected { border-color: var(--accent); color: var(--accent); }
.size-btn:disabled { opacity: .3; text-decoration: line-through; cursor: not-allowed; }
.qty-row { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
.qty-stepper { display: flex; align-items: center; border: 1px solid var(--border); border-radius: var(--radius); }
.qty-stepper button { background: none; border: none; width: 36px; height: 40px; cursor: pointer; font-size: 16px; color: var(--text); }
.qty-stepper span { width: 32px; text-align: center; font-size: 14px; }
.pdp-meta { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); font-size: 12.5px; color: var(--text-muted); display: flex; flex-direction: column; gap: 6px; }

/* ---------- Cart ---------- */
.cart-layout { display: grid; grid-template-columns: 1.6fr 1fr; gap: 56px; align-items: start; }
@media (max-width: 860px) { .cart-layout { grid-template-columns: 1fr; } }
.cart-item { display: grid; grid-template-columns: 90px 1fr auto; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--border); align-items: center; }
.cart-item img { width: 90px; height: 108px; object-fit: cover; background: var(--surface2); }
.cart-item-name { font-size: 14px; font-weight: 500; }
.cart-item-meta { font-size: 12.5px; color: var(--text-muted); margin-top: 4px; }
.cart-item-remove { font-size: 11px; color: var(--text-muted); text-decoration: underline; cursor: pointer; margin-top: 8px; background: none; border: none; padding: 0; }
.summary-box { background: var(--surface); border: 1px solid var(--border); padding: 28px; border-radius: var(--radius); }
.summary-row { display: flex; justify-content: space-between; font-size: 13.5px; margin-bottom: 12px; color: var(--text-muted); }
.summary-row.total { color: var(--text); font-weight: 700; font-size: 16px; border-top: 1px solid var(--border); padding-top: 14px; margin-top: 14px; }
.empty-state { text-align: center; padding: 100px 0; color: var(--text-muted); }

/* ---------- Checkout ---------- */
.checkout-layout { display: grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: start; }
@media (max-width: 860px) { .checkout-layout { grid-template-columns: 1fr; } }
.form-group { margin-bottom: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
label { display: block; font-size: 11.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin-bottom: 6px; }
input, select, textarea {
  width: 100%; padding: 12px 14px; background: var(--surface); border: 1px solid var(--border); color: var(--text);
  border-radius: var(--radius); font-size: 14px; font-family: var(--font-body);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
.section-label { font-size: 12px; text-transform: uppercase; letter-spacing: .1em; color: var(--text-muted); margin: 28px 0 14px; }
.notice-box { padding: 16px 18px; border: 1px solid var(--border); background: var(--surface2); font-size: 13px; color: var(--text-muted); border-radius: var(--radius); margin-top: 20px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 64px 0 40px; margin-top: 80px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h4 { font-size: 12px; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 16px; color: var(--text-muted); }
.footer-grid a { display: block; font-size: 13.5px; margin-bottom: 10px; color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-muted); flex-wrap: wrap; gap: 10px; }
.theme-toggle { background: none; border: 1px solid var(--border); border-radius: 50%; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--text); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 24px; right: 24px; background: var(--text); color: var(--bg);
  padding: 14px 20px; font-size: 13px; border-radius: var(--radius); z-index: 999;
  transform: translateY(20px); opacity: 0; transition: all .3s ease; pointer-events: none;
}
.toast.show { transform: translateY(0); opacity: 1; }

/* ---------- Mobile nav sheet ---------- */
.mobile-sheet {
  position: fixed; inset: 0; background: var(--bg); z-index: 500; display: none;
  flex-direction: column; padding: 24px;
}
.mobile-sheet.open { display: flex; }
.mobile-sheet a { padding: 16px 0; font-size: 18px; border-bottom: 1px solid var(--border); font-family: var(--font-display); }
