/* ============================================================
   Bike Basics — design tokens
   ============================================================ */
:root {
    --asphalt: #211f1d;
    --asphalt-soft: #322e2a;
    --steel: #41545e;
    --steel-light: #6d8590;
    --paper: #faf9f6;
    --paper-dim: #efece5;
    --orange: #e8590c;
    --orange-dark: #b7430a;
    --line: #d9d4c8;
    --text: #211f1d;
    --text-dim: #6b665f;

    --font-display: 'Oswald', sans-serif;
    --font-body: 'IBM Plex Sans', sans-serif;

    --radius: 2px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--text);
    background: var(--paper);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: 0.01em;
    margin: 0 0 0.4em;
    color: var(--asphalt);
}

h1 { font-size: 2.6rem; line-height: 1.08; }
h2 { font-size: 1.7rem; line-height: 1.15; }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; max-width: 68ch; }

a { color: var(--steel); text-decoration: none; }
a:hover { color: var(--orange); }

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 2px;
}

img { max-width: 100%; display: block; }

.wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Lane-marking divider (signature motif) ---------- */
.lane-divider {
    height: 0;
    border-top: 3px dashed var(--line);
    margin: 56px 0;
}
.lane-divider.dark { border-top-color: var(--asphalt-soft); }

/* ---------- Header ---------- */
.site-header {
    background: var(--asphalt);
    color: var(--paper);
    border-bottom: 4px solid var(--orange);
}
.site-header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 18px;
    padding-bottom: 18px;
}
.logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--paper);
    letter-spacing: 0.02em;
    display: flex;
    align-items: baseline;
    gap: 8px;
}
.logo span {
    color: var(--orange);
}
.main-nav { display: flex; gap: 28px; }
.main-nav a {
    color: var(--paper-dim);
    font-size: 0.95rem;
}
.main-nav a:hover, .main-nav a.active { color: var(--orange); }

/* ---------- Hero ---------- */
.hero {
    background: var(--asphalt);
    color: var(--paper);
    padding: 64px 0 72px;
}
.hero .wrap {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 48px;
    align-items: end;
}
.hero h1 { color: var(--paper); max-width: 12ch; }
.hero p.lede {
    color: var(--paper-dim);
    font-size: 1.1rem;
    max-width: 46ch;
}
.hero-catalog {
    border: 1px solid var(--asphalt-soft);
    border-left: 3px solid var(--orange);
    padding: 20px;
    background: var(--asphalt-soft);
}
.hero-catalog h3 { color: var(--paper); font-size: 0.95rem; text-transform: none; margin-bottom: 12px; }
.hero-catalog ul { list-style: none; margin: 0; padding: 0; }
.hero-catalog li { border-top: 1px solid #463f38; }
.hero-catalog li:first-child { border-top: none; }
.hero-catalog a {
    display: flex;
    justify-content: space-between;
    padding: 10px 2px;
    color: var(--paper-dim);
    font-size: 0.95rem;
}
.hero-catalog a:hover { color: var(--orange); }
.hero-catalog .count { color: var(--steel-light); font-variant-numeric: tabular-nums; }

/* ---------- Category grid ---------- */
.section-label {
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--steel);
    margin-bottom: 4px;
}
.cat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}
.cat-card {
    background: var(--paper);
    padding: 28px 20px;
    display: block;
    color: var(--text);
}
.cat-card:hover { background: var(--paper-dim); }
.cat-card .num {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--text-dim);
}
.cat-card h3 { margin: 8px 0 4px; }
.cat-card .sub { color: var(--text-dim); font-size: 0.9rem; }

/* ---------- Product grid / cards ---------- */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
    margin-top: 24px;
}
.product-card {
    border: 1px solid var(--line);
    background: var(--paper);
    display: flex;
    flex-direction: column;
}
.product-card .img {
    aspect-ratio: 4/3;
    background: var(--paper-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    font-size: 0.8rem;
    overflow: hidden;
}
.product-card .img img { width: 100%; height: 100%; object-fit: cover; }
.product-card .body { padding: 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.product-card .brand { font-size: 0.78rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.06em; }
.product-card h3 { font-size: 1.05rem; margin: 0; }
.product-card .price {
    font-family: var(--font-display);
    color: var(--orange-dark);
    font-size: 1.15rem;
    margin-top: auto;
}
.product-card .price .from { font-family: var(--font-body); font-size: 0.75rem; color: var(--text-dim); display: block; }
.product-card .actions { display: flex; gap: 8px; align-items: center; padding: 0 16px 16px; }
.btn {
    display: inline-block;
    background: var(--orange);
    color: #fff;
    padding: 9px 16px;
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    border-radius: var(--radius);
}
.btn:hover { background: var(--orange-dark); color: #fff; }
.btn.secondary {
    background: transparent;
    color: var(--steel);
    border: 1px solid var(--line);
}
.btn.secondary:hover { border-color: var(--steel); color: var(--steel); background: transparent; }
.compare-check { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: var(--text-dim); }

/* ---------- Compare table ---------- */
.compare-table { width: 100%; border-collapse: collapse; margin-top: 24px; }
.compare-table th, .compare-table td {
    border: 1px solid var(--line);
    padding: 12px 14px;
    text-align: left;
    vertical-align: top;
    font-size: 0.92rem;
}
.compare-table th { background: var(--paper-dim); font-family: var(--font-display); font-weight: 500; }
.compare-table .offer-row a { display: block; margin-bottom: 4px; }
.updated-note { font-size: 0.78rem; color: var(--text-dim); margin-top: 6px; }

/* ---------- Product detail ---------- */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 32px; }
.product-detail .img-main { background: var(--paper-dim); aspect-ratio: 4/3; display:flex; align-items:center; justify-content:center; color: var(--text-dim); }
.spec-list { list-style: none; padding: 0; margin: 16px 0; }
.spec-list li { display: flex; justify-content: space-between; padding: 8px 0; border-top: 1px solid var(--line); font-size: 0.92rem; }
.offer-list { list-style: none; padding: 0; margin: 0; }
.offer-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-top: 1px solid var(--line);
}
.offer-list .retailer { font-weight: 600; }
.offer-list .offer-price { font-family: var(--font-display); color: var(--orange-dark); }

/* ---------- Guides ---------- */
.guide-list { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 24px; }
.guide-row { background: var(--paper); padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.guide-row:hover { background: var(--paper-dim); }
.guide-row h3 { margin: 0 0 4px; font-size: 1.05rem; }
.guide-row .excerpt { color: var(--text-dim); font-size: 0.9rem; margin: 0; }
.guide-body { max-width: 68ch; margin-top: 24px; }
.guide-body p { line-height: 1.7; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--asphalt);
    color: var(--paper-dim);
    margin-top: 80px;
    padding: 40px 0 28px;
    font-size: 0.85rem;
}
.site-footer a { color: var(--paper-dim); }
.site-footer a:hover { color: var(--orange); }
.footer-links { display: flex; gap: 24px; margin-bottom: 16px; flex-wrap: wrap; }
.disclosure { color: var(--steel-light); max-width: 60ch; }

/* ---------- Admin ---------- */
.admin-shell { background: var(--paper-dim); min-height: 100vh; }
.admin-bar { background: var(--asphalt); color: var(--paper); padding: 14px 0; }
.admin-bar .wrap { display: flex; justify-content: space-between; align-items: center; }
.admin-bar a { color: var(--paper-dim); font-size: 0.9rem; }
.login-box { max-width: 360px; margin: 80px auto; background: var(--paper); border: 1px solid var(--line); padding: 32px; }
form.stacked label { display: block; font-size: 0.85rem; color: var(--text-dim); margin: 14px 0 4px; }
form.stacked input[type=text], form.stacked input[type=password], form.stacked input[type=number], form.stacked input[type=url], form.stacked select, form.stacked textarea {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid var(--line);
    font-family: var(--font-body);
    font-size: 0.95rem;
    background: #fff;
}
form.stacked textarea { min-height: 80px; }
.offer-row-form { display: grid; grid-template-columns: 1fr 1fr 1fr auto; gap: 8px; align-items: end; margin-bottom: 8px; padding: 12px; background: var(--paper-dim); }
.admin-table { width: 100%; border-collapse: collapse; margin-top: 20px; background: var(--paper); }
.admin-table th, .admin-table td { border: 1px solid var(--line); padding: 10px; font-size: 0.9rem; text-align: left; }
.admin-table th { background: var(--paper-dim); }
.flash { background: #eaf3ea; border: 1px solid #b7d8b7; padding: 10px 14px; margin-bottom: 16px; font-size: 0.9rem; }
.flash.error { background: #f7e6e2; border-color: #e0a893; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .hero .wrap { grid-template-columns: 1fr; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .product-detail { grid-template-columns: 1fr; }
    h1 { font-size: 2rem; }
    .main-nav { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}