/* Modern Dark Mode Design System for Whisper Transcriber */

:root {
  --bg-main: #0b0f19;
  --bg-card: rgba(22, 30, 49, 0.75);
  --bg-card-hover: rgba(30, 41, 67, 0.85);
  --bg-input: #0f172a;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #6366f1;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  
  --status-completed: #10b981;
  --status-pending: #f59e0b;
  --status-transcribing: #3b82f6;
  --status-refining: #ec4899;
  --status-failed: #ef4444;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  --backdrop: blur(12px);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
}

/* Utilities */
.hidden {
  display: none !important;
}

.view-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
}

/* Typography & Links */
h1, h2, h3 {
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  text-decoration: underline;
}

/* Card Styling */
.card {
  background: var(--bg-card);
  backdrop-filter: var(--backdrop);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 24px;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.card-subtitle {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 20px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  gap: 8px;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  opacity: 0.95;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

.btn-block {
  width: 100%;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.3);
}

/* Form Inputs */
.input-group {
  margin-bottom: 16px;
}

.input-group label {
  display: block;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 6px;
}

input[type="text"],
input[type="password"],
input[type="url"],
input[type="search"],
select {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-tech {
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.badge-gemini {
  background: rgba(236, 72, 153, 0.15);
  color: #f472b6;
  border: 1px solid rgba(236, 72, 153, 0.3);
}

.badge-completed { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.badge-transcribing { background: rgba(59, 130, 246, 0.15); color: #60a5fa; animation: pulse 2s infinite; }
.badge-refining { background: rgba(236, 72, 153, 0.15); color: #f472b6; animation: pulse 2s infinite; }
.badge-downloading { background: rgba(168, 85, 247, 0.15); color: #c084fc; animation: pulse 2s infinite; }
.badge-pending { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.badge-failed { background: rgba(239, 68, 68, 0.15); color: #f87171; }

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

/* Spinner */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- View 1: Login Card --- */
#login-view {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  backdrop-filter: var(--backdrop);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.brand-header {
  text-align: center;
  margin-bottom: 28px;
}

.logo-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.alert-banner {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  margin-bottom: 18px;
}

/* --- View 2: Dashboard Header --- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--bg-card);
  backdrop-filter: var(--backdrop);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 700;
}

.header-badges {
  display: flex;
  gap: 10px;
}

.header-user {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Transcribe Card */
.url-input-wrapper {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.url-input-wrapper input {
  font-size: 0.95rem;
  padding: 12px 16px;
}

.advanced-settings {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.85rem;
}

.settings-toggle {
  cursor: pointer;
  font-weight: 500;
  color: var(--text-muted);
  user-select: none;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}

.input-checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-muted);
}

/* Library Section */
.library-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 16px;
}

.library-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.search-field {
  width: 260px;
}

.video-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.video-item-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  transition: all 0.2s ease;
  gap: 16px;
}

.video-item-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateX(2px);
}

.video-item-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.video-meta {
  display: flex;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.video-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.loading-state,
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

/* --- View 3: Modal Dialog --- */
.modal-dialog {
  margin: auto;
  border: none;
  background: transparent;
  max-width: 900px;
  width: 90vw;
  max-height: 85vh;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.75);
}

.modal-dialog::backdrop {
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
}

.modal-box {
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  max-height: 85vh;
  overflow: hidden;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.modal-meta-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 6px;
  font-size: 0.8rem;
}

.meta-chip {
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 8px;
  border-radius: 4px;
}

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

.btn-close:hover {
  color: #ffffff;
}

.modal-tabs {
  display: flex;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--border-color);
  padding: 0 16px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 12px 18px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.tab-btn:hover {
  color: var(--text-main);
}

.tab-btn.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
  font-weight: 600;
}

.modal-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 10px;
}

.toolbar-right {
  display: flex;
  gap: 8px;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.rendered-text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: #e2e8f0;
  white-space: pre-wrap;
}

.raw-code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #cbd5e1;
  background: rgba(0, 0, 0, 0.4);
  padding: 16px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  white-space: pre-wrap;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: #1e293b;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.85rem;
  font-weight: 500;
  animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 10px;
}

.toast.toast-success { border-color: var(--status-completed); }
.toast.toast-error { border-color: var(--status-failed); }

@keyframes slideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}