:root {
  color-scheme: dark;
  --bg: #0b0e14;
  --panel: #161b26;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8ecf4;
  --muted: #8993a8;
  --accent: #e63946;
}

* {
  box-sizing: border-box;
}

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

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.9rem 1.5rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-size: 1.3rem;
  font-weight: 700;
}

.brand .tag {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--muted);
  margin-left: 0.5rem;
}

.session-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.session-bar button,
.session-bar a {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  font-size: 0.8rem;
}

main {
  padding: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

h2 {
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}

.hint {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.8rem;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.catalog-card {
  cursor: pointer;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--panel);
  transition: transform 0.15s ease;
}

.catalog-card:hover {
  transform: translateY(-4px);
}

.catalog-poster {
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.catalog-meta {
  padding: 0.6rem 0.7rem;
}

.catalog-title {
  font-weight: 600;
  font-size: 0.9rem;
}

.catalog-genre {
  color: var(--muted);
  font-size: 0.75rem;
}

.player-section {
  margin-bottom: 2rem;
}

.player-section.hidden {
  display: none;
}

#player {
  width: 100%;
  max-height: 60vh;
  background: black;
  border-radius: 10px;
}

.player-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.player-controls {
  display: flex;
  gap: 0.5rem;
}

.player-controls button {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
}

#simulate-error-btn {
  border-color: var(--accent);
  color: var(--accent);
}

.activity-section {
  margin-top: 2rem;
}

.activity-log {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
  max-height: 240px;
  overflow-y: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
}

.activity-row {
  padding: 0.4rem 0.75rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 0.6rem;
}

.activity-row:last-child {
  border-bottom: none;
}

.activity-level {
  font-weight: 700;
  width: 3.5rem;
  flex-shrink: 0;
}

.activity-level.info {
  color: #4d8cff;
}
.activity-level.verbose {
  color: #8993a8;
}
.activity-level.warn {
  color: #e6a23c;
}
.activity-level.error {
  color: #e63946;
}

.activity-empty {
  padding: 0.75rem;
  color: var(--muted);
}