/* Simple, beginner-friendly CSS for the cookie lab */
:root {
  --bg: #0b1220;
  --card: #101a2f;
  --text: #e9eefc;
  --muted: #9fb0d0;
  --accent: #63a7ff;
  --accent2: #ff9a5a;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --radius: 14px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1000px 500px at 20% -10%, rgba(99,167,255,0.20), transparent),
              radial-gradient(900px 500px at 100% 30%, rgba(255,154,90,0.10), transparent),
              var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.container {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.pill {
  margin-left: 8px;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(99,167,255,0.25), rgba(255,154,90,0.20));
  border: 1px solid rgba(99,167,255,0.25);
  color: var(--muted);
  font-weight: 600;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 14px;
  font-weight: 600;
}
.nav a:hover { color: var(--accent); }

main { padding: 28px 0 50px; }

.hero {
  background: linear-gradient(135deg, rgba(16, 26, 47, 0.85), rgba(16, 26, 47, 0.55));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -100px -120px auto auto;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle at center, rgba(99,167,255,0.25), transparent 60%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto auto -120px -120px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle at center, rgba(255,154,90,0.18), transparent 60%);
}

.hero h1 { margin: 0 0 10px; font-size: 32px; letter-spacing: -0.02em; }
.hero p { margin: 0 0 18px; color: var(--muted); max-width: 70ch; }

.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  text-decoration: none;
  font-weight: 700;
}
.btn.primary { background: var(--accent); color: #06101f; border-color: rgba(99,167,255,0.4); }
.btn.primary:hover { filter: brightness(1.05); }
.btn.secondary { color: var(--accent); background: transparent; }
.btn.secondary:hover { background: rgba(99,167,255,0.08); }

.grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  background: linear-gradient(180deg, rgba(16,26,47,0.95), rgba(16,26,47,0.70));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
  padding: 18px;
}

.card h2, .card h3 { margin: 0 0 8px; }
.muted { color: var(--muted); }

.product-card {
  display: grid;
  gap: 12px;
}
.product-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.2);
}

.product-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}
.badge {
  font-size: 12px;
  font-weight: 800;
  color: #081427;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  padding: 4px 10px;
  border-radius: 999px;
}

.product-page {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
  align-items: start;
}
@media (max-width: 900px) {
  .product-page { grid-template-columns: 1fr; }
}

.product-hero img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.2);
}

.table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: var(--radius);
}
.table th, .table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
.table th {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(255,255,255,0.04);
}
.table tr:hover td { background: rgba(99,167,255,0.06); }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  color: var(--muted);
}
.footer-inner { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }