:root {
  --bg: #12121a;
  --surface: #1b1b26;
  --border: #2c2c3a;
  --text: #f2f0ec;
  --muted: #a3a1af;
  --accent: #d4a537;
  --accent-hover: #e8ba4a;
  --danger: #c0503f;
  --spacing-1: 8px;
  --spacing-2: 16px;
  --spacing-3: 24px;
  --spacing-4: 40px;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.5;
}

h1, h2, h3 {
  font-family: 'Playfair Display', serif;
  margin: 0 0 var(--spacing-2);
}

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

.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-2) var(--spacing-4);
  border-bottom: 1px solid var(--border);
}

.site-nav__brand {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
}

.site-nav__links { display: flex; align-items: center; gap: var(--spacing-3); }

main { max-width: 1100px; margin: 0 auto; padding: var(--spacing-4) var(--spacing-3); }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #1a1a1a;
  padding: 10px 20px;
  border-radius: var(--radius);
  border: none;
  font-weight: 600;
  cursor: pointer;
  font-size: 1rem;
  text-align: center;
}
.btn:hover { background: var(--accent-hover); color: #1a1a1a; }
.btn--sm { padding: 6px 14px; font-size: 0.9rem; }
.btn--lg { padding: 14px 28px; font-size: 1.1rem; }
.btn--danger { background: var(--danger); color: #fff; }
.btn--link {
  background: none; border: none; color: var(--muted);
  text-decoration: underline; cursor: pointer; font-size: 0.95rem; padding: 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--spacing-3);
}

.hero { text-align: center; padding: var(--spacing-4) 0; }
.hero h1 { font-size: 2.6rem; max-width: 700px; margin: 0 auto var(--spacing-2); }
.hero p { color: var(--muted); max-width: 560px; margin: 0 auto var(--spacing-3); }

.auth-layout, .generate-layout {
  max-width: 480px;
  margin: 0 auto;
}

form p { margin: 0 0 var(--spacing-2); }
form label { display: block; margin-bottom: 4px; font-weight: 500; font-size: 0.9rem; color: var(--muted); }
form input[type=text], form input[type=email], form input[type=password], form textarea, form select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #0f0f16;
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
}
form ul.errorlist { color: var(--danger); font-size: 0.85rem; padding-left: var(--spacing-2); margin: 4px 0; }

.muted { color: var(--muted); }

.alerts { list-style: none; padding: 0; margin: 0 0 var(--spacing-3); }
.alert { padding: 10px 16px; border-radius: 6px; margin-bottom: 8px; }
.alert--success { background: #1f3d2b; color: #8fe3ab; }
.alert--error { background: #3d1f1f; color: #f0a3a3; }
.alert--info { background: #1f2c3d; color: #a3c9f0; }

.library-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--spacing-3); }

.cover-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-3);
}
.cover-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.cover-card img { width: 100%; aspect-ratio: 1024 / 1536; object-fit: cover; display: block; }
.cover-card__placeholder {
  width: 100%;
  aspect-ratio: 1024 / 1536;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  background: #0f0f16;
  font-size: 0.9rem;
}
.cover-card__placeholder--failed { color: #f0a3a3; }
.cover-card__meta { padding: var(--spacing-1) var(--spacing-2); color: var(--text); }
.cover-card__meta span { display: block; color: var(--muted); font-size: 0.85rem; }

.empty-state { text-align: center; padding: var(--spacing-4); color: var(--muted); }

.sub-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: var(--spacing-3);
  flex-wrap: wrap;
}
.badge--active { background: #1f3d2b; color: #8fe3ab; }
.badge--pending { background: #1f2c3d; color: #a3c9f0; }
.badge--inactive { background: #3d1f1f; color: #f0a3a3; }

.detail-layout { display: flex; gap: var(--spacing-4); flex-wrap: wrap; }
.detail-image { width: 100%; max-width: 100%; border-radius: var(--radius); border: 1px solid var(--border); display: block; }
.detail-images { display: flex; gap: var(--spacing-2); flex: 0 0 auto; width: 100%; max-width: 500px; }
.detail-images > div { flex: 1; min-width: 0; }
.detail-images__label { text-align: center; margin: var(--spacing-1) 0 0; font-size: 0.85rem; }
.detail-info { flex: 1; min-width: 260px; }
.detail-actions { display: flex; gap: var(--spacing-2); align-items: center; margin-top: var(--spacing-3); }
.badge {
  display: inline-block;
  background: var(--border);
  color: var(--text);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
}

.receipt {
  background: #0f0f16;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--spacing-2) var(--spacing-3);
  margin: var(--spacing-2) 0;
}
.receipt dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0; }
.receipt dt { color: var(--muted); font-size: 0.9rem; }
.receipt dd { margin: 0; font-weight: 600; }