:root {
  --bg: #16181c;
  --card-bg: #21242b;
  --text: #e8e8ea;
  --text-dim: #9a9ea6;
  --accent: #6b8afd;
  --danger: #e5636b;
  --gap-color: #e5636b;
  --unread-color: #d9a441;
  --border: #33363d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

header h1 { margin: 0; font-size: 1.3rem; }

.header-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.logged-in-as { color: var(--text-dim); font-size: 0.85em; }

input, textarea {
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.95rem;
}

button {
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 0.9rem;
}
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { background: var(--danger); border-color: var(--danger); color: #fff; margin-right: auto; }

main { padding: 20px; max-width: 1200px; margin: 0 auto; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

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

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card-cover { aspect-ratio: 3 / 4; overflow: hidden; background: #2a2d34; }
.card-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cover-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 3rem; }

.card-body { padding: 12px; display: flex; flex-direction: column; gap: 4px; }
.card-body h3 { margin: 0 0 2px; font-size: 1.05rem; }
.author { margin: 0; color: var(--text-dim); font-size: 0.85rem; }
.badge { align-self: flex-start; background: #33363d; padding: 2px 8px; border-radius: 999px; font-size: 0.75rem; color: var(--text-dim); }

.vol-row { display: flex; justify-content: space-between; font-size: 0.85rem; gap: 8px; }
.vol-label { color: var(--text-dim); flex-shrink: 0; }
.vol-row.gap span:last-child { color: var(--gap-color); font-weight: 600; }
.vol-row.unread span:last-child { color: var(--unread-color); }

.synopsis { font-size: 0.82rem; color: var(--text-dim); margin: 6px 0 0; line-height: 1.5; }

.edit-link { margin-top: 8px; align-self: flex-start; padding: 4px 10px; font-size: 0.8rem; }

.banner {
  margin: 10px 20px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border);
}
.banner-error { border-color: var(--danger); color: var(--danger); }
.banner-success { border-color: #4caf7d; color: #4caf7d; }

.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  padding: 16px;
}
.modal-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 100%;
  max-width: 420px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-box h2 { margin-top: 0; }
#editForm, #loginForm { display: flex; flex-direction: column; gap: 12px; }
#editForm label, #loginForm label { display: flex; flex-direction: column; gap: 4px; font-size: 0.85rem; color: var(--text-dim); }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 8px; }

.cover-progress {
  position: fixed;
  bottom: 16px; left: 50%; transform: translateX(-50%);
  background: var(--card-bg);
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 10px 16px;
  display: none;
  align-items: center;
  gap: 12px;
  z-index: 200;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.cover-progress.show { display: flex; }

@media (max-width: 500px) {
  header { flex-direction: column; align-items: stretch; }
  .header-actions { justify-content: space-between; }
}

button:disabled { opacity: 0.55; cursor: wait; }
.metadata-help, .edit-message { margin: 0; font-size: 0.82rem; line-height: 1.6; }
.metadata-help { color: var(--text-dim); }
.edit-message { white-space: pre-line; overflow-wrap: anywhere; }
.edit-message.error { color: var(--danger); }
.cover-candidate { border: 1px solid var(--border); border-radius: 8px; padding: 12px; }
.cover-candidate img { display: block; max-width: 140px; max-height: 200px; object-fit: contain; }
.cover-candidate p { font-size: 0.82rem; overflow-wrap: anywhere; }
#editForm .cover-choice { flex-direction: row; align-items: center; }