/* ============================================================
   KNYTDL — Cinema Dark + Spotlight Gold Theme
   "Your Knight in Shining Armor" for video downloads
   Cyberpunk-meets-Cinema Dark aesthetic
   ============================================================ */

/* ── Design Tokens ── */
:root {
  /* Backgrounds — deep OLED with blue undertones */
  --bg-void: #000000;
  --bg-primary: #0A0A14;
  --bg-surface: #111122;
  --bg-elevated: #1A1A2E;
  --bg-hover: #22223A;

  /* Text */
  --text-primary: #F0F0F8;
  --text-secondary: #8888AA;
  --text-tertiary: #555577;

  /* Accent Gold — Gotham spotlight */
  --accent-gold: #D4A843;
  --accent-gold-dim: #A07E2E;
  --accent-gold-glow: #F0C050;
  --accent-gold-subtle: rgba(212,168,67,0.08);

  /* Accent Colors */
  --accent-crimson: #C41E3A;
  --accent-cyan: #00C8E0;
  --accent-green: #2DD881;
  --accent-red: #E8364F;

  /* Borders */
  --border-subtle: rgba(255,255,255,0.05);
  --border-medium: rgba(255,255,255,0.10);
  --border-gold: rgba(212,168,67,0.25);

  /* Typography */
  --font-heading: 'Bebas Neue', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Type Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.5rem;
  --text-4xl: 3.5rem;
  --text-5xl: 5rem;
  --text-6xl: 7rem;

  /* Spacing — 8dp rhythm */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
  --duration-enter: 200ms;
  --duration-exit: 140ms;

  /* Z-index */
  --z-content: 1;
  --z-nav: 100;
  --z-modal: 200;
  --z-toast: 300;
  --z-atmosphere: -1;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.5), 0 2px 4px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.6), 0 4px 8px rgba(0,0,0,0.4);
  --shadow-gold: 0 0 20px rgba(212,168,67,0.15), 0 0 40px rgba(212,168,67,0.05);
  --shadow-gold-strong: 0 0 30px rgba(212,168,67,0.25), 0 0 60px rgba(212,168,67,0.1);

  /* Glass effect */
  --glass-bg: rgba(17,17,34,0.75);
  --glass-border: rgba(255,255,255,0.08);
  --glass-blur: 20px;

  /* Container */
  --container-max: 1440px;
  --container-padding: var(--space-4);

  /* Top nav height */
  --top-nav-height: 64px;
  --tab-bar-height: 64px;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-void);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
  outline: none;
}

select {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  color: inherit;
}

a {
  color: var(--accent-gold);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

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

/* ── Screen-reader only ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* ============================================================
   ATMOSPHERE — Noise, Gradient Orbs, Scanlines
   ============================================================ */
.atmosphere {
  position: fixed;
  inset: 0;
  z-index: var(--z-atmosphere);
  pointer-events: none;
  overflow: hidden;
}

/* Noise texture overlay using SVG filter */
.noise-overlay {
  position: fixed;
  inset: 0;
  opacity: 0.03;
  z-index: var(--z-atmosphere);
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* Gradient orbs for depth */
.gradient-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
}

.gradient-orb--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-gold-dim) 0%, transparent 70%);
  top: -200px;
  right: -100px;
  animation: orb-drift-1 30s ease-in-out infinite;
}

.gradient-orb--2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,200,224,0.3) 0%, transparent 70%);
  bottom: -150px;
  left: -100px;
  animation: orb-drift-2 25s ease-in-out infinite;
}

@keyframes orb-drift-1 {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(-40px, 30px); }
  66% { transform: translate(20px, -20px); }
}

@keyframes orb-drift-2 {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(30px, -40px); }
  66% { transform: translate(-20px, 20px); }
}

/* Scanlines hint — very subtle */
.scanlines-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.015;
  z-index: var(--z-atmosphere);
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.1) 2px,
    rgba(0,0,0,0.1) 4px
  );
}

/* ============================================================
   CUSTOM SCROLLBAR
   ============================================================ */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-void);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--bg-hover) var(--bg-void);
}

/* ============================================================
   FOCUS STYLES — Accessibility
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
}

/* Remove default outline, keep focus-visible */
:focus:not(:focus-visible) {
  outline: none;
}

/* ============================================================
   TOP NAVIGATION
   ============================================================ */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--top-nav-height);
  background: rgba(10,10,20,0.85);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--border-subtle);
  z-index: var(--z-nav);
  transition: background var(--duration-normal) var(--ease-out);
}

.top-nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--accent-gold);
  text-decoration: none;
  flex-shrink: 0;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.nav-logo:hover {
  opacity: 0.85;
  color: var(--accent-gold-glow);
}

.logo-icon {
  color: var(--accent-gold);
  transition: transform var(--duration-normal) var(--ease-spring);
}

.nav-logo:hover .logo-icon {
  transform: scale(1.1);
}

.logo-text {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  letter-spacing: 0.08em;
  line-height: 1;
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  min-height: 44px;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.nav-link:active {
  transform: scale(0.97);
}

.nav-link.active {
  color: var(--accent-gold);
  background: var(--accent-gold-subtle);
}

.nav-engine-indicator {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.engine-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  transition: background var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.engine-dot--alfred {
  background: var(--accent-gold);
  box-shadow: 0 0 8px rgba(212,168,67,0.4);
}

.engine-dot--fox {
  background: var(--accent-cyan);
  box-shadow: 0 0 8px rgba(0,200,224,0.4);
}

.engine-label {
  transition: color var(--duration-normal) var(--ease-out);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main-content {
  position: relative;
  z-index: var(--z-content);
  min-height: 100vh;
  padding-top: var(--top-nav-height);
  padding-bottom: var(--tab-bar-height);
}

/* ── Views ── */
.view {
  display: none;
  animation: viewFadeIn var(--duration-enter) var(--ease-out);
}

.view-active {
  display: block;
}

@keyframes viewFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: calc(100vh - var(--top-nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--space-8) var(--container-padding);
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
}

.hero-orb--1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(212,168,67,0.12) 0%, transparent 70%);
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  animation: hero-orb-pulse 8s ease-in-out infinite;
}

.hero-orb--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0,200,224,0.06) 0%, transparent 70%);
  bottom: 20%;
  left: 10%;
  animation: hero-orb-pulse 10s ease-in-out infinite reverse;
}

.hero-orb--3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(196,30,58,0.06) 0%, transparent 70%);
  bottom: 30%;
  right: 10%;
  animation: hero-orb-pulse 12s ease-in-out infinite;
}

@keyframes hero-orb-pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.15); }
}

.hero-inner {
  position: relative;
  max-width: 720px;
  width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

/* Hero badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  background: rgba(212,168,67,0.06);
  border: 1px solid rgba(212,168,67,0.15);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--accent-gold);
  animation: badgeFadeIn 0.6s var(--ease-out) 0.2s both;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 8px rgba(45,216,129,0.5);
  animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes badgeFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Hero title */
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-4xl), 12vw, var(--text-6xl));
  line-height: 0.9;
  letter-spacing: 0.04em;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0;
}

.hero-title-line {
  color: var(--text-primary);
  animation: titleReveal 0.8s var(--ease-out) both;
  display: inline-block;
}

.hero-title-accent {
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-glow) 50%, var(--accent-gold) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: titleReveal 0.8s var(--ease-out) 0.15s both, goldShimmer 4s ease-in-out infinite;
  display: inline-block;
}

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

@keyframes goldShimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Hero tagline */
.hero-tagline {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 300;
  color: var(--text-secondary);
  min-height: 1.75em;
  animation: taglineFadeIn 0.6s var(--ease-out) 0.4s both;
}

@keyframes taglineFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.typing-cursor {
  color: var(--accent-gold);
  animation: cursorBlink 1s step-end infinite;
  font-weight: 300;
}

@keyframes cursorBlink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* ============================================================
   INPUT BAR — Glass-morphism
   ============================================================ */
.input-bar-wrapper {
  width: 100%;
  max-width: 600px;
  animation: inputBarFadeIn 0.6s var(--ease-out) 0.5s both;
}

@keyframes inputBarFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.input-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out);
  min-height: 52px;
}

.input-bar:focus-within {
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
  background: rgba(17,17,34,0.9);
}

.input-bar--compact {
  min-height: 46px;
  border-radius: var(--radius-md);
}

.input-bar-icon {
  display: flex;
  align-items: center;
  color: var(--text-tertiary);
  flex-shrink: 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.input-bar:focus-within .input-bar-icon {
  color: var(--accent-gold);
}

.input-bar-field {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.5;
  padding: var(--space-2) 0;
}

.input-bar-field::placeholder {
  color: var(--text-tertiary);
}

.input-bar-action {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-dim) 100%);
  color: var(--bg-void);
  font-family: var(--font-heading);
  font-size: var(--text-md);
  font-weight: 400;
  letter-spacing: 0.08em;
  border-radius: var(--radius-md);
  min-height: 44px;
  white-space: nowrap;
  transition: all var(--duration-fast) var(--ease-out);
  box-shadow: 0 2px 8px rgba(212,168,67,0.2);
}

.input-bar-action:hover {
  background: linear-gradient(135deg, var(--accent-gold-glow) 0%, var(--accent-gold) 100%);
  box-shadow: var(--shadow-gold-strong);
  transform: translateY(-1px);
}

.input-bar-action:active {
  transform: scale(0.97) translateY(0);
}

.input-bar-action:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.input-bar-action--compact {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
}

/* Spinner for loading state */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(0,0,0,0.2);
  border-top-color: var(--bg-void);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

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

/* Input bar hint */
.input-bar-hint {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.hint-sep {
  opacity: 0.3;
}

/* ============================================================
   QUICK ACTIONS
   ============================================================ */
.quick-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  animation: quickActionsFadeIn 0.6s var(--ease-out) 0.7s both;
}

@keyframes quickActionsFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.quick-action {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  min-height: 44px;
  transition: all var(--duration-fast) var(--ease-out);
}

.quick-action:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
  border-color: var(--border-medium);
}

.quick-action:active {
  transform: scale(0.97);
}

.quick-action svg {
  color: var(--accent-gold);
}

/* ============================================================
   SECTIONS & CARD GRIDS
   ============================================================ */
.section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-8) var(--container-padding);
}

.section--video {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.section-title svg {
  color: var(--accent-gold);
}

.section-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

.card-grid--related {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

/* ============================================================
   VIDEO CARDS
   ============================================================ */
.video-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  animation: cardFadeIn 0.4s var(--ease-out) both;
  outline: none;
}

@keyframes cardFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.video-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
}

.video-card:active {
  transform: scale(0.98) translateY(-2px);
}

.video-card:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
}

.video-card-thumb {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: var(--bg-elevated);
  overflow: hidden;
}

.video-card-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.video-card:hover .video-card-thumb img {
  transform: scale(1.05);
}

.video-card-duration {
  position: absolute;
  bottom: var(--space-2);
  right: var(--space-2);
  background: rgba(0,0,0,0.85);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 2px var(--space-1);
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
}

.video-card-body {
  padding: var(--space-3) var(--space-3) var(--space-4);
  min-height: 88px;
}

.video-card-title {
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-1);
}

.video-card-channel {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.video-card-meta {
  display: flex;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

/* ============================================================
   SKELETON CARDS
   ============================================================ */
.skeleton-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.skeleton-thumb {
  width: 100%;
  padding-bottom: 56.25%;
  background: var(--bg-elevated);
  animation: skeletonPulse 1.5s ease-in-out infinite;
}

.skeleton-body {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.skeleton-line {
  height: 12px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  animation: skeletonPulse 1.5s ease-in-out infinite;
}

@keyframes skeletonPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ============================================================
   SEARCH VIEW
   ============================================================ */
.search-header {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-6) var(--container-padding) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.search-input-row {
  max-width: 600px;
}

.search-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.filter-label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
  white-space: nowrap;
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.filter-chip {
  padding: var(--space-1) var(--space-3);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-secondary);
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  transition: all var(--duration-fast) var(--ease-out);
}

.filter-chip:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
  border-color: var(--border-medium);
}

.filter-chip:active {
  transform: scale(0.97);
}

.filter-chip.active {
  color: var(--accent-gold);
  background: var(--accent-gold-subtle);
  border-color: var(--border-gold);
}

.search-results-info {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4) var(--container-padding) 0;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* ============================================================
   VIDEO DETAIL VIEW
   ============================================================ */
.back-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  margin: var(--space-4) var(--container-padding) 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  min-height: 44px;
  transition: all var(--duration-fast) var(--ease-out);
}

.back-button:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
  border-color: var(--border-medium);
}

.back-button:active {
  transform: scale(0.97);
}

.video-detail {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4) var(--container-padding) var(--space-8);
}

/* Video player / thumbnail */
.video-player-wrapper {
  margin-bottom: var(--space-6);
}

.video-thumbnail-large {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: var(--bg-elevated);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background-size: cover;
  background-position: center;
}

.video-play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
  color: var(--text-primary);
}

.video-thumbnail-large:hover .video-play-overlay {
  opacity: 1;
}

/* Video info */
.video-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.video-title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.2;
  color: var(--text-primary);
}

.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.video-meta-left {
  flex: 1;
  min-width: 0;
}

.video-meta-right {
  display: flex;
  gap: var(--space-4);
  flex-shrink: 0;
}

.video-channel {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.channel-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-elevated);
  background-size: cover;
  background-position: center;
  border: 2px solid var(--border-subtle);
  flex-shrink: 0;
}

.channel-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.channel-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.channel-subs {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.video-stat {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.video-stat svg {
  color: var(--text-tertiary);
}

/* ============================================================
   DOWNLOAD PANEL
   ============================================================ */
.download-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.download-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
}

.download-panel-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.download-panel-title svg {
  color: var(--accent-gold);
}

.download-panel-badge {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: rgba(45,216,129,0.1);
  color: var(--accent-green);
  border: 1px solid rgba(45,216,129,0.2);
  transition: all var(--duration-normal) var(--ease-out);
}

.download-panel-badge.downloading {
  background: rgba(0,200,224,0.1);
  color: var(--accent-cyan);
  border-color: rgba(0,200,224,0.2);
  animation: badgePulse 1.5s ease-in-out infinite;
}

.download-panel-badge.error {
  background: rgba(232,54,79,0.1);
  color: var(--accent-red);
  border-color: rgba(232,54,79,0.2);
}

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

.download-panel-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.download-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-4);
}

.download-option-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.download-option-label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
}

/* Download button */
.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-dim) 100%);
  color: var(--bg-void);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 400;
  letter-spacing: 0.08em;
  border-radius: var(--radius-lg);
  min-height: 52px;
  transition: all var(--duration-fast) var(--ease-out);
  box-shadow: 0 4px 16px rgba(212,168,67,0.25);
  width: 100%;
}

.btn-download:hover {
  background: linear-gradient(135deg, var(--accent-gold-glow) 0%, var(--accent-gold) 100%);
  box-shadow: var(--shadow-gold-strong);
  transform: translateY(-2px);
}

.btn-download:active {
  transform: scale(0.98) translateY(0);
}

.btn-download:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-download.loading {
  pointer-events: none;
}

/* ============================================================
   DESCRIPTION
   ============================================================ */
.video-description-wrapper {
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-4);
}

.description-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color var(--duration-fast) var(--ease-out);
  min-height: 44px;
}

.description-toggle:hover {
  color: var(--text-primary);
}

.description-toggle svg {
  transition: transform var(--duration-normal) var(--ease-out);
}

.description-toggle.open svg {
  transform: rotate(180deg);
}

.video-description {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-out);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--text-secondary);
}

.video-description.open {
  max-height: 600px;
  padding-top: var(--space-3);
}

.video-description a {
  color: var(--accent-cyan);
}

/* ============================================================
   COMMENTS
   ============================================================ */
.comments-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.comment-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  transition: background var(--duration-fast) var(--ease-out);
}

.comment-item:hover {
  background: var(--bg-surface);
}

.comment-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-elevated);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: var(--text-md);
  flex-shrink: 0;
  border: 1px solid var(--border-subtle);
}

.comment-content {
  flex: 1;
  min-width: 0;
}

.comment-author {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.comment-time {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-bottom: var(--space-1);
}

.comment-text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  word-break: break-word;
}

.comment-likes {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

/* ============================================================
   DOWNLOADS VIEW
   ============================================================ */
.downloads-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.download-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out);
  animation: cardFadeIn 0.3s var(--ease-out) both;
}

.download-item:hover {
  background: var(--bg-elevated);
  border-color: var(--border-medium);
}

.download-item-thumb {
  width: 64px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}

.download-item-info {
  flex: 1;
  min-width: 0;
}

.download-item-title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: var(--space-1);
}

.download-item-meta {
  display: flex;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

.download-item-actions {
  display: flex;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* ============================================================
   BUTTONS — Shared Styles
   ============================================================ */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  min-height: 36px;
  transition: all var(--duration-fast) var(--ease-out);
}

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

.btn-sm:active {
  transform: scale(0.97);
}

.btn-sm:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  transform: none;
}

.btn-gold {
  background: var(--accent-gold);
  color: var(--bg-void);
  border-color: var(--accent-gold);
}

.btn-gold:hover {
  background: var(--accent-gold-glow);
  color: var(--bg-void);
  border-color: var(--accent-gold-glow);
}

.btn-danger {
  color: var(--accent-red);
  border-color: rgba(232,54,79,0.2);
}

.btn-danger:hover {
  background: rgba(232,54,79,0.1);
  color: var(--accent-red);
  border-color: rgba(232,54,79,0.3);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--text-tertiary);
  transition: all var(--duration-fast) var(--ease-out);
}

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

.btn-icon:active {
  transform: scale(0.95);
}

.btn-icon.redownload:hover {
  color: var(--accent-cyan);
  background: rgba(0,200,224,0.1);
}

.btn-icon.delete:hover {
  color: var(--accent-red);
  background: rgba(232,54,79,0.1);
}

/* ============================================================
   SELECTS
   ============================================================ */
.select-sm {
  padding: var(--space-1) var(--space-6) var(--space-1) var(--space-2);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23555577' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  min-height: 36px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.select-sm:hover {
  border-color: var(--border-medium);
  color: var(--text-primary);
}

.select-sm:focus {
  border-color: var(--accent-gold);
  outline: none;
}

.select-md {
  padding: var(--space-2) var(--space-8) var(--space-2) var(--space-3);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--text-primary);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23555577' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  min-height: 44px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  width: 100%;
}

.select-md:hover {
  border-color: var(--border-medium);
}

.select-md:focus {
  border-color: var(--accent-gold);
  outline: none;
  box-shadow: 0 0 0 2px rgba(212,168,67,0.15);
}

/* ============================================================
   SETTINGS VIEW
   ============================================================ */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.settings-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
}

.settings-card--health {
  border-color: var(--border-medium);
}

.settings-card-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.settings-row:last-child {
  border-bottom: none;
}

.settings-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

.settings-label + .select-md {
  max-width: 200px;
}

/* Toggle switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 28px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: var(--text-tertiary);
  border-radius: 50%;
  transition: all var(--duration-normal) var(--ease-spring);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--accent-gold-subtle);
  border-color: var(--border-gold);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(20px);
  background: var(--accent-gold);
}

.toggle-switch input:focus-visible + .toggle-slider {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
}

/* Health grid */
.health-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.health-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.health-item-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.health-item-value {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.health-item-value.healthy {
  color: var(--accent-green);
}

.health-item-value.unhealthy {
  color: var(--accent-red);
}

.health-status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-tertiary);
  transition: all var(--duration-normal) var(--ease-out);
}

.health-status-dot.healthy {
  background: var(--accent-green);
  box-shadow: 0 0 8px rgba(45,216,129,0.4);
}

.health-status-dot.unhealthy {
  background: var(--accent-red);
  box-shadow: 0 0 8px rgba(232,54,79,0.4);
}

/* About */
.about-text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.about-text strong {
  color: var(--accent-gold);
}

.about-version {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-2);
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-8) var(--container-padding);
  max-width: var(--container-max);
  margin: 0 auto;
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  min-height: 44px;
  transition: all var(--duration-fast) var(--ease-out);
}

.pagination-btn:hover:not(:disabled) {
  color: var(--text-primary);
  background: var(--bg-hover);
  border-color: var(--border-medium);
}

.pagination-btn:active:not(:disabled) {
  transform: scale(0.97);
}

.pagination-btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.pagination-page {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}

/* ============================================================
   EMPTY STATES
   ============================================================ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-4);
  text-align: center;
  color: var(--text-tertiary);
  gap: var(--space-2);
}

.empty-state svg {
  opacity: 0.3;
  margin-bottom: var(--space-4);
}

.empty-state p {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--text-secondary);
}

.empty-state span {
  font-size: var(--text-sm);
}

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */
.toast-container {
  position: fixed;
  top: calc(var(--top-nav-height) + var(--space-4));
  right: var(--space-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 380px;
  width: calc(100% - var(--space-8));
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  pointer-events: auto;
  animation: toastSlideIn 0.3s var(--ease-spring) both;
  position: relative;
  overflow: hidden;
}

.toast::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--accent-gold);
  width: 100%;
  transform-origin: left;
  animation: toastProgress 4s linear both;
}

.toast-success::after { background: var(--accent-green); }
.toast-error::after { background: var(--accent-red); }
.toast-info::after { background: var(--accent-cyan); }

@keyframes toastProgress {
  from { transform: scaleX(1); }
  to { transform: scaleX(0); }
}

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

.toast-exit {
  animation: toastSlideOut 0.25s var(--ease-in) both;
}

@keyframes toastSlideOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(40px); }
}

.toast-icon {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  padding-top: 2px;
}

.toast-body {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.toast-message {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  line-height: 1.4;
}

.toast-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  flex-shrink: 0;
  transition: all var(--duration-fast) var(--ease-out);
}

.toast-close:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal) var(--ease-out);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  width: 100%;
  max-width: 440px;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transform: scale(0.95) translateY(10px);
  transition: transform var(--duration-normal) var(--ease-spring);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--text-primary);
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--text-tertiary);
  transition: all var(--duration-fast) var(--ease-out);
}

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

.modal-body {
  padding: var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

.modal-body p {
  margin-bottom: var(--space-2);
}

.modal-body p:last-child {
  margin-bottom: 0;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-subtle);
}

/* ============================================================
   BOTTOM TAB BAR (Mobile)
   ============================================================ */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--tab-bar-height);
  background: rgba(10,10,20,0.92);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-top: 1px solid var(--border-subtle);
  z-index: var(--z-nav);
  display: flex;
  align-items: stretch;
  justify-content: space-around;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  flex: 1;
  padding: var(--space-2);
  color: var(--text-tertiary);
  font-size: var(--text-xs);
  font-weight: 500;
  transition: color var(--duration-fast) var(--ease-out);
  min-height: 44px;
  position: relative;
}

.tab-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 32px;
  height: 2px;
  background: var(--accent-gold);
  border-radius: 0 0 2px 2px;
  transition: transform var(--duration-normal) var(--ease-out);
}

.tab-item:hover {
  color: var(--text-secondary);
}

.tab-item:active {
  transform: scale(0.95);
}

.tab-item.active {
  color: var(--accent-gold);
}

.tab-item.active::before {
  transform: translateX(-50%) scaleX(1);
}

.tab-item span {
  line-height: 1;
}

/* ============================================================
   ANIMATIONS DISABLED
   ============================================================ */
.animations-disabled *,
.animations-disabled *::before,
.animations-disabled *::after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .video-card:hover {
    transform: none;
  }

  .input-bar-action:hover,
  .btn-download:hover {
    transform: none;
  }

  .hero-orb {
    animation: none !important;
  }

  .gradient-orb {
    animation: none !important;
  }
}

/* ============================================================
   RESPONSIVE — 768px (Tablet)
   ============================================================ */
@media (min-width: 768px) {
  :root {
    --container-padding: var(--space-6);
  }

  .nav-links {
    display: flex;
  }

  .nav-engine-indicator {
    display: flex;
  }

  .tab-bar {
    display: none;
  }

  .main-content {
    padding-bottom: 0;
  }

  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }

  .card-grid--related {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }

  .settings-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero {
    min-height: calc(100vh - var(--top-nav-height));
  }

  .video-detail {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .video-title {
    font-size: var(--text-3xl);
  }

  .download-options {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================================
   RESPONSIVE — 1024px (Desktop)
   ============================================================ */
@media (min-width: 1024px) {
  :root {
    --container-padding: var(--space-8);
  }

  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }

  .card-grid--related {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }

  .video-detail {
    max-width: 100%;
  }

  .video-title {
    font-size: var(--text-3xl);
  }

  .toast-container {
    max-width: 400px;
  }
}

/* ============================================================
   RESPONSIVE — 1440px (Max container)
   ============================================================ */
@media (min-width: 1440px) {
  :root {
    --container-padding: var(--space-10);
  }

  .card-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .card-grid--related {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }

  .settings-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================================
   RESPONSIVE — Small Mobile (375px)
   ============================================================ */
@media (max-width: 400px) {
  :root {
    --container-padding: var(--space-3);
  }

  .hero-title {
    font-size: clamp(2.5rem, 14vw, 4rem);
  }

  .hero-tagline {
    font-size: var(--text-base);
  }

  .input-bar {
    padding: var(--space-2);
  }

  .input-bar-action span {
    display: none;
  }

  .input-bar-action {
    padding: var(--space-2);
    min-width: 44px;
    justify-content: center;
  }

  .quick-actions {
    gap: var(--space-1);
  }

  .quick-action {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
  }

  .download-options {
    grid-template-columns: 1fr;
  }

  .video-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .video-meta-right {
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  .filter-group {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .settings-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .settings-label + .select-md {
    max-width: 100%;
    width: 100%;
  }

  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }

  .toast-container {
    right: var(--space-2);
    left: var(--space-2);
    max-width: 100%;
    width: auto;
  }

  .modal {
    max-width: 100%;
  }

  .download-item {
    flex-wrap: wrap;
  }

  .download-item-actions {
    width: 100%;
    justify-content: flex-end;
  }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
  .top-nav,
  .tab-bar,
  .toast-container,
  .modal-overlay,
  .atmosphere,
  .input-bar-wrapper,
  .download-panel,
  .quick-actions,
  .back-button {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .view {
    display: block !important;
  }
}

/* ============================================================
   HIGH CONTRAST MODE
   ============================================================ */
@media (forced-colors: active) {
  .btn-download,
  .input-bar-action,
  .btn-gold {
    border: 2px solid ButtonText;
  }

  .filter-chip.active {
    border: 2px solid Highlight;
  }

  .nav-link.active {
    border: 1px solid Highlight;
  }

  .toggle-slider {
    border: 2px solid ButtonText;
  }
}

/* ============================================================
   HOVER MEDIA QUERY — Touch device detection
   ============================================================ */
@media (hover: none) {
  .video-card:hover {
    transform: none;
    box-shadow: none;
  }

  .input-bar-action:hover,
  .btn-download:hover {
    transform: none;
  }

  .quick-action:hover {
    background: var(--bg-elevated);
    color: var(--text-secondary);
  }

  .video-thumbnail-large:hover .video-play-overlay {
    opacity: 0;
  }
}

/* ============================================================
   LANDSCAPE MOBILE
   ============================================================ */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: var(--space-4) var(--container-padding);
  }

  .hero-title {
    font-size: var(--text-3xl);
  }

  .hero-badge {
    display: none;
  }

  .quick-actions {
    display: none;
  }
}

/* ============================================================
   DARK MODE ONLY (ensure no light leaks)
   ============================================================ */
@media (prefers-color-scheme: light) {
  /* Force dark — this app is dark-only */
  html {
    color-scheme: dark;
  }
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.text-gold { color: var(--accent-gold); }
.text-cyan { color: var(--accent-cyan); }
.text-red { color: var(--accent-red); }
.text-green { color: var(--accent-green); }
.text-muted { color: var(--text-tertiary); }
.font-heading { font-family: var(--font-heading); }
.font-mono { font-family: var(--font-mono); }
.font-body { font-family: var(--font-body); }

/* Visually hidden but accessible */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}