/* ============ CSS Variables ============ */
:root {
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-bg: #f8fafc;
  --color-card: #ffffff;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

/* ============ Reset & Base ============ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
}

/* ============ Navbar ============ */
.navbar {
  background: var(--color-card);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  text-decoration: none;
}

/* ============ Container ============ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

h1 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

/* ============ Cards ============ */
.card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
}

.stat-label {
  opacity: 0.9;
  font-size: 0.9rem;
}

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

.form-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
}

.form-inline .form-group {
  margin-bottom: 0;
  flex: 1;
  min-width: 150px;
}

input, select, textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* ============ Buttons ============ */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

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

.btn-secondary {
  background: var(--color-border);
  color: var(--color-text);
}

.btn-secondary:hover {
  background: #cbd5e1;
}

.btn-danger {
  background: var(--color-danger);
  color: white;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.875rem;
}

.btn-block {
  display: block;
  width: 100%;
}

.actions-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* ============ Tables ============ */
.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table th {
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  text-transform: uppercase;
}

.table tr:hover {
  background: var(--color-bg);
}

.url-cell {
  max-width: 250px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============ Badges ============ */
.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-success {
  background: #d1fae5;
  color: #065f46;
}

.badge-warning {
  background: #fef3c7;
  color: #92400e;
}

.badge-secondary {
  background: var(--color-border);
  color: var(--color-text-secondary);
}

/* ============ Alerts ============ */
.alert {
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* ============ Login Page ============ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: 1rem;
}

.login-card {
  background: white;
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  text-align: center;
}

.login-card h1 {
  margin-bottom: 0.5rem;
}

.login-card p {
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
}

/* ============ Summary Styles ============ */
.breadcrumb {
  margin-bottom: 1rem;
}

.episode-meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  color: var(--color-text-secondary);
}

.episode-meta a {
  color: inherit;
}

.summary-card {
  margin-top: 1rem;
}

.summary-section {
  margin-bottom: 1.5rem;
}

.summary-section:last-child {
  margin-bottom: 0;
}

.summary-section h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-secondary);
}

.tldr {
  font-size: 1.1rem;
  line-height: 1.7;
  background: var(--color-bg);
  padding: 1rem;
  border-radius: 8px;
  border-left: 4px solid var(--color-primary);
}

.topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
}

.topic-list li {
  background: var(--color-bg);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
}

blockquote {
  background: var(--color-bg);
  border-left: 4px solid var(--color-warning);
  padding: 1rem;
  margin: 0.5rem 0;
  border-radius: 0 8px 8px 0;
  font-style: italic;
}

.transcript {
  white-space: pre-wrap;
  font-size: 0.875rem;
  line-height: 1.8;
  max-height: 400px;
  overflow-y: auto;
  padding: 1rem;
  background: var(--color-bg);
  border-radius: 8px;
  margin-top: 1rem;
}

.empty-state {
  color: var(--color-text-secondary);
  text-align: center;
  padding: 2rem;
}

/* ============ Responsive ============ */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 1rem;
  }
  
  .nav-links {
    gap: 1rem;
  }
  
  .container {
    padding: 1rem;
  }
  
  .form-inline {
    flex-direction: column;
  }
  
  .form-inline .form-group {
    width: 100%;
  }
}