/* ===== Variables ===== */
:root {
  --bg-primary: #0f0f1a;
  --bg-card: #1a1a2e;
  --bg-card-hover: #1f1f38;
  --bg-modal: #1a1a2e;
  --bg-input: #0f0f1a;
  --border-color: #2a2a4a;
  --text-primary: #e0e0e0;
  --text-secondary: #8892a4;
  --text-muted: #5a6378;
  --accent: #6c5ce7;
  --accent-hover: #7f70f0;
  --success: #00d084;
  --error: #ff4757;
  --warning: #ffa502;
  --checking: #3742fa;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 4px 20px rgba(0,0,0,0.3);
}

/* ===== Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ===== Body ===== */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

/* ===== Header ===== */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.header-actions {
  display: flex;
  gap: 0.5rem;
}

/* ===== Buttons ===== */
.btn-icon {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

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

.btn-primary {
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--border-color);
  color: var(--text-primary);
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.9rem;
  transition: background 0.2s;
}

.btn-secondary:hover {
  background: var(--text-muted);
}

.btn-full {
  width: 100%;
}

.btn-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  line-height: 1;
}

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

/* ===== FAB ===== */
.fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-size: 1.75rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(108,92,231,0.4);
  transition: all 0.2s;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fab:hover {
  background: var(--accent-hover);
  transform: scale(1.05);
}

/* ===== Main Content ===== */
.main-content {
  padding: 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
}

/* ===== Empty State ===== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 4rem 1rem;
  color: var(--text-muted);
  text-align: center;
}

.empty-state p {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.empty-state span {
  font-size: 0.9rem;
}

/* ===== Playlist Grid ===== */
.playlist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1rem;
}

/* ===== Card ===== */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.25rem;
  border-left: 4px solid var(--text-muted);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card:hover {
  background: var(--bg-card-hover);
}

.card.idle { border-left-color: var(--text-muted); }
.card.checking { border-left-color: var(--checking); }
.card.completed { border-left-color: var(--success); }
.card.error { border-left-color: var(--error); }

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  word-break: break-word;
}

.card-actions {
  display: flex;
  gap: 0.25rem;
  flex-shrink: 0;
}

.card-actions .btn-icon {
  padding: 0.35rem;
  font-size: 1rem;
}

.btn-play { color: var(--success) !important; }
.btn-play:hover { background: rgba(0,208,132,0.15) !important; }
.btn-stop { color: var(--error) !important; }
.btn-stop:hover { background: rgba(255,71,87,0.15) !important; }
.btn-delete { color: var(--error) !important; }
.btn-delete:hover { background: rgba(255,71,87,0.15) !important; }

/* Status badges */
.card-status {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.status-badge {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
}

.status-badge.idle { background: rgba(90,99,120,0.2); color: var(--text-muted); }
.status-badge.checking { background: rgba(55,66,250,0.2); color: var(--checking); animation: pulse 2s infinite; }
.status-badge.completed { background: rgba(0,208,132,0.15); color: var(--success); }
.status-badge.error { background: rgba(255,71,87,0.15); color: var(--error); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.cron-badge {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Progress */
.progress-container {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--checking), var(--success));
  border-radius: 3px;
  transition: width 0.5s ease;
}

.progress-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.error-text {
  font-size: 0.8rem;
  color: var(--error);
  word-break: break-word;
}

/* Stats */
.card-stats {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.stat-value {
  font-size: 0.95rem;
  font-weight: 600;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-working .stat-value {
  color: var(--success);
}

/* Links */
.card-links {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-color);
}

.btn-link {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  background: rgba(108,92,231,0.15);
  color: var(--accent);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  transition: background 0.2s;
}

.btn-link:hover {
  background: rgba(108,92,231,0.25);
}

.link-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  width: 100%;
}

.link-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.6rem;
  color: var(--text-primary);
  font-size: 0.8rem;
  font-family: monospace;
  outline: none;
}

.link-input:focus {
  border-color: var(--accent);
}

.btn-copy {
  background: var(--border-color);
  border: none;
  color: var(--text-secondary);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.75rem;
  white-space: nowrap;
  transition: all 0.2s;
}

.btn-copy:hover {
  background: var(--accent);
  color: white;
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--bg-modal);
  border-radius: var(--radius);
  padding: 1.5rem;
  width: 90%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.modal-header h2 {
  font-size: 1.15rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

/* ===== Tabs ===== */
.tab-bar {
  display: flex;
  gap: 0;
  margin-bottom: 1rem;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.tab {
  flex: 1;
  background: var(--bg-input);
  color: var(--text-secondary);
  border: none;
  padding: 0.6rem;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
}

.tab.active {
  background: var(--accent);
  color: white;
}

.tab:hover:not(.active) {
  background: var(--border-color);
}

/* ===== Forms ===== */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group input[type="time"],
.form-group select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
}

.form-hint {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.file-input {
  width: 100%;
  padding: 0.5rem !important;
}

.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  color: var(--text-primary) !important;
  font-size: 0.9rem !important;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.error-message {
  background: rgba(255,71,87,0.1);
  color: var(--error);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.success-message {
  background: rgba(0,208,132,0.1);
  color: var(--success);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 1rem 0;
}

.section-title {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== Login Page ===== */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-container {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 2.5rem;
  width: 90%;
  max-width: 380px;
  box-shadow: var(--shadow);
}

.login-title {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.login-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .playlist-grid {
    grid-template-columns: 1fr;
  }

  .modal-content {
    width: 95%;
    padding: 1rem;
  }

  .fab {
    bottom: 1.5rem;
    right: 1.5rem;
  }
}