/* ==========================================================================
   NexusStream — Premium Cyber-Glass Design System
   ========================================================================== */

:root {
  --bg-base: #07090e;
  --bg-surface: #0d121f;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(24, 33, 54, 0.85);
  --bg-glass-input: rgba(13, 18, 31, 0.85);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(0, 242, 254, 0.3);
  --border-active: #00f2fe;

  --accent-cyan: #00f2fe;
  --accent-indigo: #4facfe;
  --accent-violet: #7928ca;
  --accent-purple: #8a2be2;
  --accent-pink: #ff007a;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

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

  --shadow-glow-cyan: 0 0 25px rgba(0, 242, 254, 0.25);
  --shadow-glow-purple: 0 0 30px rgba(121, 40, 202, 0.25);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Ambient Background Mesh */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}

.glow-1 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, var(--accent-violet) 0%, transparent 70%);
  top: -150px;
  left: 10%;
  animation: floatOrb 18s ease-in-out infinite alternate;
}

.glow-2 {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, #0051ff 0%, transparent 70%);
  bottom: 5%;
  right: -100px;
  animation: floatOrb 22s ease-in-out infinite alternate-reverse;
}

.glow-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
  top: 40%;
  left: -100px;
  opacity: 0.2;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 40px) scale(1.1); }
  100% { transform: translate(-40px, 70px) scale(0.95); }
}

/* App Wrapper */
.app-container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 40px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ==========================================================================
   Header Navigation
   ========================================================================== */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(13, 18, 31, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: 36px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.header-left .brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.4);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #ffffff, #c7d2fe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tag {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Nav Buttons */
.header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.03);
  padding: 4px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.nav-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-btn.active {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.15) 0%, rgba(121, 40, 202, 0.2) 100%);
  border: 1px solid rgba(0, 242, 254, 0.35);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
}

/* Status Pill */
.status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-emerald);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

/* ==========================================================================
   Hero Section
   ========================================================================= */
.hero-section {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 36px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 18px;
}

.hero-title {
  font-size: 2.85rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-indigo) 50%, var(--accent-pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   URL Input & Extractor Card
   ========================================================================== */
.extractor-card {
  max-width: 900px;
  margin: 0 auto 32px;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(255, 255, 255, 0.05);
  transition: border-color var(--transition-normal);
}

.extractor-card:focus-within {
  border-color: rgba(0, 242, 254, 0.4);
  box-shadow: var(--shadow-card), 0 0 24px rgba(0, 242, 254, 0.15);
}

.url-input-form {
  display: flex;
  gap: 12px;
  margin-bottom: 18px;
}

@media (max-width: 768px) {
  .url-input-form {
    flex-direction: column;
  }
}

.input-wrapper {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  background: var(--bg-glass-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0 14px;
  transition: all var(--transition-fast);
}

.input-wrapper:focus-within {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px rgba(0, 242, 254, 0.2);
}

.input-icon {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  margin-right: 10px;
}

.url-input {
  flex: 1;
  height: 52px;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-primary);
}

.url-input::placeholder {
  color: var(--text-muted);
}

.input-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.action-icon-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.action-icon-btn:hover {
  color: var(--accent-cyan);
  background: rgba(255, 255, 255, 0.05);
}

.submit-btn {
  height: 54px;
  padding: 0 28px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 50%, #8a2be2 100%);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(0, 210, 255, 0.35);
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 210, 255, 0.5);
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #9b51e0 100%);
}

.submit-btn:active {
  transform: translateY(0);
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-text, .btn-loading {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Quick Samples Chips */
.quick-samples {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.samples-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sample-chips {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.sample-chip {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 5px 12px;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sample-chip:hover {
  color: #ffffff;
  border-color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.1);
  transform: translateY(-1px);
}

/* ==========================================================================
   Scanner / Radar HUD
   ========================================================================== */
.scanner-hud {
  max-width: 900px;
  margin: 0 auto 32px;
  background: rgba(13, 18, 31, 0.85);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 242, 254, 0.35);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-glow-cyan);
  animation: fadeIn 0.3s ease-out;
}

.scanner-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.scanner-radar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid rgba(0, 242, 254, 0.3);
  position: relative;
  overflow: hidden;
  background: rgba(0, 242, 254, 0.05);
}

.radar-sweep {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: conic-gradient(from 0deg at 50% 50%, rgba(0, 242, 254, 0.8) 0deg, transparent 90deg);
  animation: radarSpin 1.4s linear infinite;
}

@keyframes radarSpin {
  100% { transform: rotate(360deg); }
}

.scanner-status {
  flex: 1;
}

.scanner-status h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}

.scanner-status p {
  font-size: 0.82rem;
  color: var(--accent-cyan);
}

.scanner-percentage {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.progress-bar-track {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 12px;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
  box-shadow: 0 0 10px var(--accent-cyan);
}

.telemetry-logs {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: rgba(0, 0, 0, 0.3);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 85px;
  overflow-y: hidden;
}

.telemetry-line {
  opacity: 0.85;
}

/* ==========================================================================
   Error Banner
   ========================================================================== */
.error-banner {
  max-width: 900px;
  margin: 0 auto 32px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: rgba(244, 63, 94, 0.12);
  border: 1px solid rgba(244, 63, 94, 0.4);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  color: #fff;
  animation: fadeIn 0.25s ease-out;
}

.error-icon {
  color: var(--accent-rose);
  margin-top: 2px;
}

.error-content {
  flex: 1;
}

.error-content h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-rose);
  margin-bottom: 4px;
}

.error-content p {
  font-size: 0.85rem;
  color: #ffd1d8;
  line-height: 1.5;
}

.error-close {
  background: transparent;
  border: none;
  color: #ffd1d8;
  cursor: pointer;
  font-size: 1rem;
  padding: 2px 6px;
  border-radius: 4px;
}

/* ==========================================================================
   Results Container & Video Cards
   ========================================================================== */
.results-container {
  max-width: 900px;
  margin: 0 auto 40px;
  animation: fadeIn 0.4s ease-out;
}

.page-meta-card {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-card);
}

@media (max-width: 640px) {
  .page-meta-card {
    flex-direction: column;
  }
}

.meta-thumb-container {
  position: relative;
  width: 220px;
  height: 125px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
}

@media (max-width: 640px) {
  .meta-thumb-container {
    width: 100%;
    height: 180px;
  }
}

.meta-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.meta-thumb-container:hover .meta-thumb {
  transform: scale(1.05);
}

.thumb-play-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.5);
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.4);
  transition: all var(--transition-fast);
}

.meta-thumb-container:hover .thumb-play-overlay {
  transform: translate(-50%, -50%) scale(1.15);
  background: var(--accent-cyan);
  color: #000;
}

.meta-details {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.meta-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-domain {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.badge-count {
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.3);
}

.badge-edge {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.result-title {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 8px;
  color: #ffffff;
}

.result-source-url {
  font-size: 0.8rem;
  color: var(--text-muted);
  word-break: break-all;
}

.url-label {
  font-weight: 600;
  margin-right: 4px;
}

.source-link {
  color: var(--accent-indigo);
  text-decoration: none;
}

.source-link:hover {
  text-decoration: underline;
}

/* Streams Section */
.streams-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding: 0 4px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
}

.section-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.streams-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Stream Card */
.stream-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  gap: 16px;
  transition: all var(--transition-normal);
}

.stream-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0, 242, 254, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
  .stream-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .stream-card-actions {
    width: 100%;
    justify-content: flex-end;
  }
}

.stream-info-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
}

.stream-format-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.15) 0%, rgba(121, 40, 202, 0.2) 100%);
  border: 1px solid rgba(0, 242, 254, 0.3);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
}

.stream-text-details {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stream-quality-line {
  display: flex;
  align-items: center;
  gap: 10px;
}

.stream-quality-title {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
}

.badge-stream-format {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-indigo);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
}

.stream-meta-line {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.stream-size {
  font-family: var(--font-mono);
  color: var(--accent-emerald);
  font-weight: 600;
}

.stream-type {
  color: var(--text-muted);
}

/* Action Buttons */
.stream-card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.btn-download-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%);
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(0, 210, 255, 0.35);
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
}

.btn-download-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 210, 255, 0.5);
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
}

.btn-stream-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-stream-action:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--accent-cyan);
}

/* ==========================================================================
   Tabs Management
   ========================================================================== */
.tab-pane {
  display: none;
}

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

/* ==========================================================================
   History Section (D1 Database)
   ========================================================================== */
.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.section-heading {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
  color: #ffffff;
}

.section-subheading {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.history-actions {
  display: flex;
  gap: 10px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-danger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.3);
  border-radius: var(--radius-sm);
  color: var(--accent-rose);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-danger:hover {
  background: rgba(244, 63, 94, 0.2);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-indigo));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(0, 242, 254, 0.4);
}

/* Table Container */
.table-container {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.history-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.history-table th {
  background: rgba(255, 255, 255, 0.03);
  padding: 14px 18px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border-subtle);
}

.history-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  vertical-align: middle;
}

.history-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.table-video-title {
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 4px;
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.table-source-tag {
  font-size: 0.75rem;
  color: var(--accent-indigo);
}

.table-mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

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

.table-btn-dl {
  padding: 6px 12px;
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 700;
  transition: all var(--transition-fast);
}

.table-btn-dl:hover {
  background: var(--accent-cyan);
  color: #000;
}

.table-btn-del {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: 4px;
}

.table-btn-del:hover {
  color: var(--accent-rose);
  background: rgba(244, 63, 94, 0.1);
}

/* Empty / Loading States */
.empty-state, .loading-state {
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.empty-state h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.empty-state p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

/* ==========================================================================
   Capabilities Grid
   ========================================================================== */
.capabilities-hero {
  margin-bottom: 28px;
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.cap-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition-normal);
}

.cap-card:hover {
  border-color: rgba(0, 242, 254, 0.35);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.cap-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

.cap-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #ffffff;
}

.cap-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.cap-card code {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--accent-cyan);
}

.drm-notice-box {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-md);
  padding: 20px;
}

.drm-notice-icon {
  font-size: 1.8rem;
}

.drm-notice-text h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-amber);
  margin-bottom: 6px;
}

.drm-notice-text p {
  font-size: 0.85rem;
  color: #fde68a;
  line-height: 1.5;
}

/* ==========================================================================
   Modal Video Player
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  animation: fadeIn 0.2s ease-out;
}

.modal-dialog {
  width: 100%;
  max-width: 800px;
  background: var(--bg-surface);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), var(--shadow-glow-cyan);
  overflow: hidden;
}

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

.modal-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-cyan);
  letter-spacing: 0.05em;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  max-width: 650px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

.video-player-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}

.modal-video {
  width: 100%;
  height: 100%;
  outline: none;
}

.modal-footer-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: rgba(0, 0, 0, 0.2);
}

.modal-stream-meta {
  display: flex;
  gap: 8px;
}

.badge-format {
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-cyan);
}

.badge-quality {
  background: rgba(121, 40, 202, 0.2);
  color: #d8b4fe;
}

.badge-size {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.app-footer {
  margin-top: auto;
  padding-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

@media (max-width: 640px) {
  .app-footer {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

.footer-separator {
  margin: 0 8px;
  opacity: 0.4;
}

.app-footer a {
  color: var(--accent-indigo);
  text-decoration: none;
}

.app-footer a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(13, 18, 31, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid var(--accent-cyan);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5), var(--shadow-glow-cyan);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  z-index: 2000;
  animation: slideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

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

/* ==========================================================================
   Input Mode Switcher & Raw Source Form
   ========================================================================== */
.input-mode-switcher {
  max-width: 900px;
  margin: 0 auto 12px;
  display: flex;
  gap: 8px;
}

.mode-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mode-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.mode-btn.active {
  color: #00f2fe;
  background: rgba(0, 242, 254, 0.1);
  border-color: rgba(0, 242, 254, 0.4);
}

.raw-input-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 18px;
}

.raw-hint {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.raw-hint em {
  color: var(--accent-cyan);
}

.raw-textarea {
  width: 100%;
  background: var(--bg-glass-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-primary);
  outline: none;
  resize: vertical;
}

.raw-textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px rgba(0, 242, 254, 0.2);
}

.raw-actions {
  display: flex;
  gap: 12px;
}

@media (max-width: 640px) {
  .raw-actions {
    flex-direction: column;
  }
}

.raw-base-input {
  flex: 1;
  height: 50px;
  background: var(--bg-glass-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0 14px;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--text-primary);
  outline: none;
}

.raw-base-input:focus {
  border-color: var(--accent-cyan);
}

/* ==========================================================================
   Error Action Buttons
   ========================================================================== */
.error-actions-row {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.btn-error-action {
  padding: 7px 14px;
  background: rgba(0, 242, 254, 0.15);
  border: 1px solid rgba(0, 242, 254, 0.4);
  border-radius: var(--radius-sm);
  color: #00f2fe;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-error-action:hover {
  background: #00f2fe;
  color: #000;
}

.btn-error-action.secondary {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.btn-error-action.secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* ==========================================================================
   Sniffer Modal & Bookmarklet
   ========================================================================== */
.btn-highlight {
  color: var(--accent-cyan) !important;
  background: rgba(0, 242, 254, 0.1) !important;
  border: 1px solid rgba(0, 242, 254, 0.3) !important;
}

.btn-highlight:hover {
  background: rgba(0, 242, 254, 0.2) !important;
}

.modal-padding {
  padding: 24px;
}

.sniffer-explainer {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.sniffer-explainer strong {
  color: #fff;
}

.bookmarklet-box {
  background: rgba(0, 0, 0, 0.4);
  border: 2px dashed rgba(0, 242, 254, 0.4);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  margin-bottom: 24px;
}

.bookmarklet-step {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 600;
}

.bookmarklet-btn {
  display: inline-block;
  padding: 12px 24px;
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
  color: #000;
  font-weight: 800;
  font-size: 0.95rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: grab;
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.4);
  user-select: none;
  -webkit-user-drag: element;
  transition: all var(--transition-fast);
}

.bookmarklet-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 26px rgba(0, 242, 254, 0.6);
}

.how-to-use-steps {
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

.how-to-use-steps h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.how-to-use-steps ol {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.how-to-use-steps strong {
  color: var(--accent-cyan);
}