/* ============================================================
   STRENGTH MERCHANT — DESIGN SYSTEM
   Dark, heavy, no-nonsense. Change brand colors in :root below.
   ============================================================ */

:root {
  --bg: #0e0e10;          /* near-black background */
  --bg-raised: #17171a;   /* cards, header */
  --bg-hover: #1f1f23;
  --border: #2a2a2f;
  --text: #ececec;
  --text-dim: #9a9aa2;
  --accent: #d92b2b;      /* signal red — buttons, highlights */
  --accent-hover: #b71f1f;
  --max-width: 1200px;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .wordmark, .btn {
  font-family: "Oswald", -apple-system, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Header ---------- */
.site-header {
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.wordmark {
  font-size: 1.35rem;
  font-weight: 700;
}
.wordmark span { color: var(--accent); }

.main-nav { display: flex; gap: 28px; align-items: center; }
.main-nav a {
  font-size: 0.9rem;
  color: var(--text-dim);
  transition: color 0.15s;
}
.main-nav a:hover, .main-nav a.active { color: var(--text); }

.cart-link {
  position: relative;
  font-weight: 600;
  color: var(--text) !important;
}
.cart-count {
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 1px 7px;
  margin-left: 4px;
  display: none;
}
.cart-count.visible { display: inline-block; }

/* ---------- Hero ---------- */
.hero {
  padding: 90px 0 100px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse at 20% 0%, rgba(217, 43, 43, 0.12), transparent 55%),
    var(--bg);
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.05;
  max-width: 700px;
}
.hero h1 em { color: var(--accent); font-style: normal; }
.hero p {
  margin-top: 18px;
  color: var(--text-dim);
  font-size: 1.1rem;
  max-width: 520px;
}
.hero .btn { margin-top: 32px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 13px 30px;
  cursor: pointer;
  transition: background 0.15s;
}
.btn:hover { background: var(--accent-hover); }
.btn.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn.btn-ghost:hover { border-color: var(--text-dim); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Sections ---------- */
.section { padding: 64px 0; }
.section-title {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 28px;
  border-left: 4px solid var(--accent);
  padding-left: 14px;
}

/* ---------- Category tiles ---------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.category-tile {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  padding: 44px 24px;
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
}
.category-tile:hover { border-color: var(--accent); background: var(--bg-hover); }
.category-tile h3 { font-size: 1.15rem; }
.category-tile p { color: var(--text-dim); font-size: 0.85rem; margin-top: 6px; }

/* ---------- Product grid & cards ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.product-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  transition: border-color 0.15s;
  display: flex;
  flex-direction: column;
}
.product-card:hover { border-color: var(--text-dim); }

.product-image {
  aspect-ratio: 1;
  background: var(--bg-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.product-image img { width: 100%; height: 100%; object-fit: cover; }
.image-placeholder {
  font-family: "Oswald", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--border);
  font-size: 0.8rem;
  border: 1px dashed var(--border);
  padding: 10px 16px;
}

.product-info { padding: 16px; flex: 1; display: flex; flex-direction: column; }
.product-info .cat-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.product-info h3 { font-size: 1rem; margin-top: 4px; font-weight: 500; }
.product-info .price { margin-top: auto; padding-top: 12px; font-weight: 700; }

/* ---------- Filter bar (shop page) ---------- */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }
.filter-bar button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 8px 18px;
  font-size: 0.85rem;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}
.filter-bar button:hover { color: var(--text); border-color: var(--text-dim); }
.filter-bar button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---------- Product detail page ---------- */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: 56px 0;
}
@media (max-width: 760px) { .product-detail { grid-template-columns: 1fr; } }

.product-detail .product-image { border: 1px solid var(--border); }
.product-detail h1 { font-size: 2rem; margin-top: 6px; }
.product-detail .price { font-size: 1.5rem; font-weight: 700; margin: 18px 0; }
.product-detail .description { color: var(--text-dim); margin-bottom: 28px; }

.qty-row { display: flex; gap: 12px; align-items: center; margin-bottom: 20px; }
.qty-row label { color: var(--text-dim); font-size: 0.9rem; }
.qty-row input {
  width: 70px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px;
  font-size: 1rem;
  text-align: center;
}

/* ---------- Cart page ---------- */
.cart-item {
  display: grid;
  grid-template-columns: 80px 1fr auto auto auto;
  gap: 16px;
  align-items: center;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  padding: 14px;
  margin-bottom: 10px;
}
@media (max-width: 600px) {
  .cart-item { grid-template-columns: 60px 1fr; }
  .cart-item > *:nth-child(n+3) { grid-column: 2; }
}
.cart-item .product-image { width: 80px; aspect-ratio: 1; }
.cart-item .image-placeholder { font-size: 0.5rem; padding: 4px 6px; }
.cart-item h3 { font-size: 0.95rem; font-weight: 500; }
.cart-item .remove-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.8rem;
  text-decoration: underline;
}
.cart-item .remove-btn:hover { color: var(--accent); }
.cart-item input {
  width: 60px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px;
  text-align: center;
}

.cart-summary {
  margin-top: 28px;
  border-top: 2px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.cart-summary .total { font-size: 1.4rem; font-weight: 700; }
.empty-note { color: var(--text-dim); padding: 40px 0; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 64px;
  padding: 36px 0;
  color: var(--text-dim);
  font-size: 0.85rem;
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Page header strip ---------- */
.page-head { padding: 44px 0 8px; }
.page-head h1 { font-size: 2rem; }
.page-head p { color: var(--text-dim); margin-top: 6px; }