/* YT Radyo - Modern Dark Theme CSS */

:root {
  /* Colors */
  --bg-primary: #0f0f0f;
  --bg-secondary: #1a1a1a;
  --bg-card: #242424;
  --bg-card-hover: #2a2a2a;
  --bg-input: #1a1a1a;
  
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
  
  --accent-primary: #ff4444;
  --accent-primary-hover: #ff6666;
  --accent-secondary: #333333;
  --accent-secondary-hover: #444444;
  
  --success: #22c55e;
  --warning: #eab308;
  --error: #ef4444;
  
  --border-color: #333333;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

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

/* Base */
html {
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
}

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

a:hover {
  color: var(--accent-primary-hover);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.header-logo:hover {
  color: var(--text-primary);
}

.logo-icon {
  font-size: 1.5rem;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-info {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Main Content */
.main-content {
  padding: 2rem 0;
}

/* Page Header */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 1rem;
}

.page-title h1 {
  font-size: 1.75rem;
  margin-bottom: 0.25rem;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: var(--accent-primary-hover);
  transform: translateY(-1px);
}

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

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

.btn-sm {
  padding: 0.5rem 0.75rem;
  font-size: 0.75rem;
}

.btn-block {
  width: 100%;
}

.btn-icon {
  font-size: 1rem;
}

.btn-icon-only {
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  font-size: 1rem;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.btn-icon-only:hover {
  opacity: 1;
}

.btn-icon-only.danger:hover {
  filter: brightness(1.5);
}

/* Radio Grid */
.radio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
}

/* Radio Card */
.radio-card {
  background-color: var(--bg-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.radio-card:hover {
  background-color: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.radio-card.inactive {
  opacity: 0.6;
}

.radio-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.radio-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.radio-status.active {
  color: var(--success);
}

.radio-status.active .status-dot {
  background-color: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulse 2s infinite;
}

.radio-status.inactive {
  color: var(--text-muted);
}

.radio-status.inactive .status-dot {
  background-color: var(--text-muted);
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.radio-actions {
  display: flex;
  gap: 0.25rem;
}

.radio-card-body {
  padding: 1.25rem;
}

.radio-name {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.radio-description {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.radio-card-footer {
  padding: 1rem 1.25rem;
  background-color: rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.stream-url-container label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.stream-url-row {
  display: flex;
  gap: 0.5rem;
}

.stream-url {
  flex: 1;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 0.5rem 0.75rem;
  font-size: 0.75rem;
  color: var(--text-primary);
  font-family: 'Monaco', 'Consolas', monospace;
}

/* Empty State */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  background-color: var(--bg-card);
  border-radius: var(--border-radius);
  border: 1px dashed var(--border-color);
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.empty-state h3 {
  margin-bottom: 0.5rem;
}

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

/* Form Elements */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-hint {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 200;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background-color: var(--bg-card);
  border-radius: var(--border-radius);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 1.25rem;
}

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

.modal-close:hover {
  color: var(--text-primary);
}

.modal form {
  padding: 1.5rem;
}

.modal-footer {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  margin-top: 1rem;
}

/* Alert */
.alert {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-radius: var(--border-radius-sm);
  margin-bottom: 1.5rem;
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.alert-success {
  background-color: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #86efac;
}

.alert-icon {
  font-size: 1.25rem;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--bg-card);
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-lg);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
  z-index: 300;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success {
  border-left: 4px solid var(--success);
}

.toast.error {
  border-left: 4px solid var(--error);
}

/* Login Page */
.login-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
  background: linear-gradient(135deg, var(--bg-primary) 0%, #1a0a0a 100%);
}

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

.login-card {
  background-color: var(--bg-card);
  border-radius: var(--border-radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.logo h1 {
  font-size: 1.75rem;
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.login-footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
  .page-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .radio-grid {
    grid-template-columns: 1fr;
  }
  
  .header-container {
    flex-wrap: wrap;
    gap: 1rem;
  }
}