/* Minimalist theme: black, white and one warm grey. Change the colours here. */
:root {
  --bg: #ffffff; --surface: #ffffff; --soft: #f5f4f1;
  --text: #111111; --muted: #7a7a7a; --line: #e8e8e8;
  --accent: #111111; --accent-dark: #000000;
  --max: 1200px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; font-size: 15px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--text); }
h1, h2, h3 { font-weight: 400; letter-spacing: -0.01em; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header { background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.logo { font-size: .95rem; font-weight: 600; letter-spacing: .28em; text-transform: uppercase; text-decoration: none; color: var(--text); }
.logo span { color: inherit; margin-left: .28em; }
nav { display: flex; gap: 28px; align-items: center; }
nav a { text-decoration: none; color: var(--muted); font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; transition: color .2s; }
nav a:hover, nav a.active { color: var(--text); }
.cart-link { color: var(--text) !important; }
#cart-count { font-weight: 400; }

/* Hero */
.hero { padding: 140px 0 120px; border-bottom: 1px solid var(--line); }
.hero h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); line-height: 1.05; margin: 0 0 24px; font-weight: 300; letter-spacing: -0.03em; max-width: 12ch; }
.hero p { font-size: 1.05rem; color: var(--muted); max-width: 40ch; margin: 0 0 40px; }

/* Buttons */
.btn { display: inline-block; background: var(--accent); color: #fff; border: 1px solid var(--accent); border-radius: 0; padding: 12px 24px; font: inherit; font-size: .75rem; letter-spacing: .16em; text-transform: uppercase; cursor: pointer; text-decoration: none; text-align: center; transition: background .2s, color .2s; }
.btn:hover { background: #fff; color: var(--accent); }
.btn-lg { padding: 16px 36px; }
.btn-ghost { background: transparent; color: var(--accent); }
.btn-ghost:hover { background: var(--accent); color: #fff; }
.link { background: none; border: 0; color: var(--muted); cursor: pointer; font: inherit; font-size: .8rem; text-decoration: underline; text-underline-offset: 3px; }
.link:hover { color: var(--text); }

/* Sections and grid */
section { padding: 72px 0; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 32px; }
.section-head a { font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); text-decoration: none; }
.section-head a:hover { color: var(--text); }
h2 { margin: 0; font-size: 1.5rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 48px 32px; }
.card { display: flex; flex-direction: column; }
.card-img { background: var(--soft); overflow: hidden; }
.card-img img { aspect-ratio: 4 / 5; object-fit: cover; width: 100%; transition: transform .5s ease; }
.card:hover .card-img img { transform: scale(1.03); }
.card-body { padding: 16px 0 0; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.card-body h3 { margin: 0; font-size: .95rem; }
.card-body h3 a { text-decoration: none; }
.card-body .btn { margin-top: 12px; background: transparent; color: var(--text); padding: 10px 0; border-width: 0 0 1px; align-self: flex-start; }
.card-body .btn:hover { color: var(--muted); border-color: var(--muted); }
.tag { color: var(--muted); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; }
.price { margin: 0; color: var(--muted); }
.price.big { font-size: 1.4rem; color: var(--text); }

/* Features strip */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 48px; }
.feature { border-top: 1px solid var(--text); padding-top: 16px; color: var(--muted); font-size: .9rem; }
.feature strong { display: block; margin-bottom: 6px; color: var(--text); font-weight: 500; font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; }

/* Product detail */
.detail { display: grid; grid-template-columns: 1.2fr 1fr; gap: 72px; padding: 56px 0; align-items: start; }
.detail-img { background: var(--soft); }
.detail-img img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.detail-info { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 112px; }
.detail-info h1 { margin: 0; font-size: 2.2rem; font-weight: 300; }
.detail-info > p { color: var(--muted); max-width: 42ch; }
.back { text-decoration: none; font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.qty-row { display: flex; align-items: center; gap: 16px; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.qty-row input { width: 72px; padding: 10px; border: 1px solid var(--line); border-radius: 0; font: inherit; color: var(--text); }
.perks { color: var(--muted); padding: 16px 0 0; margin: 0; list-style: none; border-top: 1px solid var(--line); font-size: .85rem; }
.perks li { padding: 4px 0; }

/* Cart */
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th { font-weight: 400; font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.cart-table th, .cart-table td { padding: 20px 12px 20px 0; text-align: left; border-bottom: 1px solid var(--line); }
.cart-prod { display: flex; align-items: center; gap: 20px; }
.cart-prod a { text-decoration: none; }
.cart-prod img { width: 64px; height: 80px; object-fit: cover; background: var(--soft); }
.cart-summary { display: flex; justify-content: flex-end; align-items: center; gap: 32px; margin-top: 32px; font-size: 1.1rem; }
.cart-summary strong { font-weight: 500; }
.empty { color: var(--muted); }

/* Inner page headings */
.page-head { padding: 72px 0 0; }
.page-head h1 { margin: 0; font-size: 2.6rem; font-weight: 300; letter-spacing: -0.02em; }
.page-head p { color: var(--muted); margin: 8px 0 0; }
.prose { max-width: 620px; color: #444; }
.prose h2 { margin-top: 40px; color: var(--text); }

/* Account and checkout panels */
.panel { border: 1px solid var(--line); padding: 40px; display: flex; flex-direction: column; gap: 20px; }
.panel h2 { font-size: 1.3rem; }
.panel p { margin: 0; color: var(--muted); }
.panel label { display: flex; flex-direction: column; gap: 8px; font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.panel input { padding: 12px 0; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; font: inherit; font-size: 1rem; color: var(--text); letter-spacing: 0; text-transform: none; }
.panel input:focus { outline: none; border-bottom-color: var(--text); }
.auth-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
#checkout-step { margin-top: 40px; }
.demo-end { background: var(--soft); border-color: var(--soft); }
.demo-note { color: var(--muted); font-size: .8rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 72px; padding: 40px 0; color: var(--muted); font-size: .75rem; letter-spacing: .08em; }
.site-footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.site-footer a { color: var(--muted); }

/* Toast */
#toast { position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%) translateY(120px); background: var(--text); color: #fff; padding: 14px 24px; font-size: .8rem; letter-spacing: .08em; transition: transform .3s; z-index: 50; }
#toast.show { transform: translateX(-50%) translateY(0); }

@media (max-width: 720px) {
  .wrap { padding: 0 16px; }
  nav { gap: 16px; }
  nav .hide-sm { display: none; }
  .hero { padding: 88px 0 72px; }
  section { padding: 48px 0; }
  .grid { grid-template-columns: 1fr 1fr; gap: 32px 16px; }
  .detail { grid-template-columns: 1fr; gap: 32px; }
  .detail-info { position: static; }
  .auth-grid { grid-template-columns: 1fr; }
  .panel { padding: 24px; }
  .cart-table th:nth-child(2), .cart-table td:nth-child(2) { display: none; }
}