:root {
  --bg: #f6f4ef;
  --surface: #ffffff;
  --text: #2b2622;
  --muted: #746c62;
  --border: #e4ddd1;
  --primary: #7a4a2b;
  --primary-dark: #5f3a20;
  --accent: #b9843f;
  --danger: #a3352b;
  --success: #3c6e47;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(43, 38, 34, 0.08), 0 1px 2px rgba(43, 38, 34, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Tahoma, Verdana, sans-serif;
  line-height: 1.5;
}

a { color: var(--primary); }

header.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .bar {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-header .logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary-dark);
  text-decoration: none;
}

.site-header nav {
  display: flex;
  gap: 18px;
  align-items: center;
}

.site-header nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  padding: 6px 4px;
}

.site-header nav a:hover { color: var(--primary); }

.cart-badge {
  background: var(--primary);
  color: #fff;
  border-radius: 999px;
  padding: 1px 8px;
  font-size: 0.75rem;
  margin-left: 4px;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

h1 { font-size: 1.7rem; margin: 0 0 6px; }
h2 { font-size: 1.3rem; margin: 0 0 12px; }
p.subtitle { color: var(--muted); margin-top: 0; }

.grid-books {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.book-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.book-card .cover {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: #ece6da;
  display: block;
}

.book-card .body {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.book-card .title { font-weight: 700; font-size: 1.02rem; }
.book-card .author { color: var(--muted); font-size: 0.9rem; }
.book-card .description {
  font-size: 0.87rem;
  color: var(--text);
  flex: 1;
  margin: 4px 0;
}

.book-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
}

.price { font-weight: 700; color: var(--primary-dark); font-size: 1.05rem; }
.stock { font-size: 0.8rem; color: var(--success); }
.stock.out { color: var(--danger); }

.book-card .actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  align-items: center;
}

.qty-input {
  width: 56px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 6px;
  text-align: center;
}

button, .btn {
  font: inherit;
  cursor: pointer;
  border: none;
  border-radius: 6px;
  padding: 9px 14px;
  background: var(--primary);
  color: #fff;
  transition: background 0.15s;
}

button:hover, .btn:hover { background: var(--primary-dark); }
button:disabled { background: #c9c1b4; cursor: not-allowed; }

button.secondary, .btn.secondary {
  background: transparent;
  color: var(--primary-dark);
  border: 1px solid var(--border);
}
button.secondary:hover, .btn.secondary:hover { background: #efe9dc; }

button.danger { background: var(--danger); }
button.danger:hover { background: #832a22; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}

th { background: #efe9dc; color: var(--primary-dark); }

tr:last-child td { border-bottom: none; }

form.stacked {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 480px;
}

form.stacked label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 5px;
}

form.stacked label[hidden] {
  display: none;
}

input, textarea, select {
  font: inherit;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
}

textarea { resize: vertical; min-height: 70px; }

.message {
  padding: 10px 14px;
  border-radius: 6px;
  margin: 12px 0;
  font-size: 0.9rem;
}
.message.error { background: #fbe4e1; color: var(--danger); border: 1px solid #f0bcb5; }
.message.success { background: #e2f0e3; color: var(--success); border: 1px solid #b9dcbb; }

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 40px 0;
}

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: #efe9dc;
  color: var(--primary-dark);
}

.two-col {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: start;
}

@media (max-width: 800px) {
  .two-col { grid-template-columns: 1fr; }
}

footer.site-footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
  padding: 24px 0;
}

/* --- Modul abonament premium --- */

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.pill {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  background: var(--surface);
  color: var(--text);
}

.pill:hover { background: #efe9dc; }

.pill.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.grid-posts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 10px;
}

.post-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  text-decoration: none;
  color: var(--text);
}

.post-card:hover { border-color: var(--accent); }

.post-card h2 {
  font-size: 1.1rem;
  margin: 10px 0 6px;
}

.post-card p {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0;
}

.post-card-top {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.badge-premium { background: var(--accent); color: #fff; }
.badge-free { background: var(--success); color: #fff; }

.locked-banner {
  margin-top: 18px;
  padding: 16px;
  border-radius: var(--radius);
  background: #efe9dc;
  border: 1px solid var(--border);
}

.post-full-content {
  margin-top: 18px;
  line-height: 1.7;
}

.stack-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 10px;
}

.stack-item {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
  text-decoration: none;
  color: var(--text);
}

.stack-item:hover { border-color: var(--accent); }

.stack-item h3 {
  font-size: 1.05rem;
  margin: 6px 0 4px;
}

.stack-item p {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0;
}