* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0f172a;
  --bg-light: #1e293b;
  --fg: #f1f5f9;
  --accent: #00d4aa;
  --accent-dim: rgba(0, 212, 170, 0.15);
  --card: rgba(30, 41, 59, 0.95);
  --border: #334155;
  --focus: #00d4aa;
  --focus-ring: 0 0 0 4px var(--focus);
  --error: #ef4444;
  --success: #10b981;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --bg-hover: rgba(51, 65, 85, 0.5);
}

html, body {
  height: 100%;
  width: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow: hidden;
}

body.scrollable {
  overflow: auto;
}

#app {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

header {
  padding: 32px 48px;
  background: var(--bg-light);
  border-bottom: 2px solid var(--border);
}

.header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

header .subtitle {
  color: #94a3b8;
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.btn-text {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}

.btn-text:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.connection-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #ef4444;
  transition: all 0.3s ease;
}

.status-dot.connected {
  background: var(--success);
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.5);
}

.status-text {
  font-size: 0.9rem;
  color: #cbd5e1;
}

main {
  flex: 1;
  padding: 32px 48px;
  overflow-y: auto;
}

.card {
  background: var(--card);
  border-radius: 16px;
  border: 2px solid var(--border);
  margin-bottom: 32px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.card-header {
  padding: 24px 32px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header h2 {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--fg);
}

.card-content {
  padding: 32px;
}

.series-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
}

@media (max-width: 768px) {
  .series-list {
    grid-template-columns: 1fr;
  }
}

.series-card {
  background: var(--bg);
  border-radius: 12px;
  border: 2px solid var(--border);
  padding: 24px;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.series-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.series-card:focus {
  outline: none;
  box-shadow: var(--focus-ring);
}

.series-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  cursor: pointer;
  padding: 12px;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.series-header:hover {
  background: var(--accent-dim);
}

.series-header-content {
  flex: 1;
}

.series-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 4px;
}

.series-episode-count {
  font-size: 0.9rem;
  color: #94a3b8;
}

.playing-indicator {
  display: inline-block;
  padding: 4px 10px;
  background: var(--success);
  color: #000;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: 12px;
}

.expand-icon {
  font-size: 1.2rem;
  color: var(--accent);
  font-weight: 600;
  transition: transform 0.3s ease;
}

.series-header.collapsed .expand-icon {
  transform: rotate(-90deg);
}

.series-content {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  transition: all 0.3s ease;
}

.series-content.hidden {
  display: none;
}

.episode-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
}

@media (max-width: 768px) {
  .episode-list {
    grid-template-columns: 1fr;
  }
}

.episode-item {
  display: flex;
  align-items: center;
  padding: 16px;
  background: var(--bg-light);
  border-radius: 8px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.episode-item:hover {
  transform: translateX(4px);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.episode-item.playing {
  border-color: var(--success);
  background: rgba(16, 185, 129, 0.1);
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.3);
}

.episode-number {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
  margin-right: 16px;
  min-width: 40px;
}

.episode-title {
  font-size: 1rem;
  color: var(--fg);
  flex: 1;
}

.loading-episodes {
  text-align: center;
  padding: 40px;
  color: #94a3b8;
  font-style: italic;
}

.info-card {
  margin-top: 0;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  padding: 32px;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.info-item label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
}

.info-item code {
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 0.9rem;
  color: var(--fg);
  word-break: break-all;
}

.info-item button {
  align-self: flex-start;
  margin-top: 4px;
}

.info-hint {
  margin-top: 16px;
  padding: 12px;
  background: var(--accent-dim);
  border-left: 4px solid var(--accent);
  border-radius: 4px;
  font-size: 0.9rem;
  color: #cbd5e1;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
}

.form-group input {
  width: 100%;
  padding: 12px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font-size: 1.2rem;
  text-align: center;
  letter-spacing: 4px;
  font-family: 'SF Mono', Monaco, monospace;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.form-group input::placeholder {
  color: #94a3b8;
}

.form-message {
  margin-top: 16px;
  padding: 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  display: none;
}

.form-message.success {
  background: rgba(16, 185, 129, 0.1);
  border: 2px solid var(--success);
  color: var(--success);
  display: block;
}

.form-message.error {
  background: rgba(239, 68, 68, 0.1);
  border: 2px solid var(--error);
  color: var(--error);
  display: block;
}

.btn-primary, .btn-danger {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-right: 12px;
}

.btn-primary {
  background: var(--accent);
  color: #000;
}

.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0, 212, 170, 0.3);
}

.btn-danger {
  background: var(--error);
  color: #fff;
}

.btn-danger:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-copy:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0, 212, 170, 0.3);
}

.quality-badge {
  display: inline-block;
  padding: 4px 10px;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  margin-left: 12px;
}
.quality-badge:hover {
  opacity: 0.8;
}

footer {
  padding: 24px 48px;
  background: var(--bg-light);
  border-top: 2px solid var(--border);
  text-align: center;
}

footer p {
  color: #94a3b8;
  font-size: 0.95rem;
}

footer strong {
  color: var(--accent);
}

/* Toast notifications */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  padding: 16px 24px;
  background: var(--card);
  border: 2px solid var(--success);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 1000;
  animation: slideIn 0.3s ease;
}

.toast.error {
  border-color: var(--error);
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Responsive adjustments */
@media (max-width: 1280px) {
  header, main, footer {
    padding: 24px 32px;
  }
  .card-header {
    padding: 20px 24px;
  }
  .card-content {
    padding: 24px;
  }
}

@media (max-width: 768px) {
  header {
    padding: 20px 24px;
  }
  header h1 {
    font-size: 2rem;
  }
  main {
    padding: 20px 24px;
  }
  .card-header {
    padding: 16px 20px;
  }
  .card-header h2 {
    font-size: 1.5rem;
  }
  .card-content {
    padding: 20px;
  }
  .info-grid {
    grid-template-columns: 1fr;
    padding: 20px;
  }
  footer {
    padding: 20px 24px;
  }
}

/* ── Persona control bar ──────────────────────────────────── */
.persona-control-bar {
  display: flex;
  align-items: center;
  gap: 16px;
}

.persona-control-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}

.persona-selector {
  flex: 0 1 320px;
  padding: 10px 40px 10px 16px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.persona-selector:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.persona-selector:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.persona-control-hint {
  margin-top: 12px;
  padding: 10px 14px;
  background: rgba(239, 68, 68, 0.08);
  border-left: 4px solid var(--error);
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--error);
}

/* ── Persona list ─────────────────────────────────────────── */
.persona-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.persona-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.2s, background 0.2s;
}

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

.persona-item.active {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.persona-item-info {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  min-width: 0;
}

.persona-item-label {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--fg);
}

.persona-badge {
  display: inline-block;
  padding: 3px 10px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

.persona-badge.badge-active {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  font-weight: 700;
}

.persona-item-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.btn-small {
  padding: 6px 14px;
  font-size: 0.85rem;
}

/* ── Persona form ─────────────────────────────────────────── */
.form-group .form-input-text {
  text-align: left;
  letter-spacing: normal;
  font-family: inherit;
  font-size: 1rem;
}

.form-input-text {
  width: 100%;
  padding: 12px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input-text:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.form-input-text::placeholder {
  color: var(--text-secondary);
}

.form-hint {
  display: block;
  margin-top: 6px;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-secondary);
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

/* ── Series checkbox grid ─────────────────────────────────── */
.series-checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 8px;
  max-height: 320px;
  overflow-y: auto;
  padding: 4px 0;
}

.series-checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.series-checkbox-item:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.series-checkbox-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.series-checkbox-label {
  flex: 1;
  font-size: 0.95rem;
  color: var(--fg);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.series-checkbox-count {
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.checkbox-counter {
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ── Empty state ──────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 32px;
  color: var(--text-secondary);
  font-style: italic;
}

/* ── Responsive for persona sections ──────────────────────── */
@media (max-width: 768px) {
  .persona-control-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .persona-selector {
    flex: none;
  }
  .persona-item {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .persona-item-actions {
    justify-content: flex-end;
  }
  .series-checkbox-grid {
    grid-template-columns: 1fr;
  }
}

/* Episode detail page */
.back-link {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  font-size: 1rem;
  margin-bottom: 16px;
  transition: opacity 0.2s;
}

.back-link:hover {
  opacity: 0.8;
}

.episode-count {
  font-size: 0.9rem;
  color: #94a3b8;
}

.episodes-list {
  display: flex;
  flex-direction: column;
}

.episode-detail {
  display: flex;
  gap: 20px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}

.episode-detail:last-child {
  border-bottom: none;
}

.episode-detail:hover {
  background: var(--accent-dim);
}

.episode-detail-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 1.1rem;
  border-radius: 12px;
}

.episode-detail-info {
  flex: 1;
  min-width: 0;
}

.episode-detail-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--fg);
}

.episode-detail-synopsis {
  font-size: 0.9rem;
  color: #94a3b8;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .episode-detail {
    padding: 16px;
    gap: 14px;
  }
  .episode-detail-number {
    width: 40px;
    height: 40px;
    font-size: 0.95rem;
  }
  .episode-detail-title {
    font-size: 1rem;
  }
}