/* ==========================================
   FINDFLIX - NETFLIX-INSPIRED DARK THEME
   ========================================== */

/* ==========================================
   CSS VARIABLES
   ========================================== */
:root {
  /* Dark Theme Colors */
  --bg-primary: #000000;
  --bg-secondary: #0A0A0A;
  --bg-tertiary: #111111;
  --bg-card: #181818;
  --bg-card-hover: #232323;
  
  /* Orange Accent Colors */
  --accent-primary: #EB6F46;
  --accent-secondary: #FF6A2A;
  --accent-hover: #D45A35;
  --accent-glow: rgba(235, 111, 70, 0.4);
  
  /* Text Colors */
  --text-primary: #FFFFFF;
  --text-secondary: #CCCCCC;
  --text-muted: #808080;
  --text-dark: #000000;
  
  /* Borders & Shadows */
  --border-color: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px var(--accent-glow);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Manrope', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ==========================================
   HEADER / NAVIGATION
   ========================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.7) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: var(--spacing-sm) var(--spacing-lg);
  transition: background var(--transition-smooth);
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
  text-decoration: none;
  transition: transform var(--transition-smooth);
}

.logo:hover {
  transform: scale(1.05);
}

/* Burger Menu Button */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  z-index: 1001;
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 28px;
}

.hamburger span {
  display: block;
  height: 3px;
  background: var(--text-primary);
  border-radius: 3px;
  transition: all var(--transition-smooth);
}

.menu-toggle[aria-expanded="true"] .hamburger span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle[aria-expanded="true"] .hamburger span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.menu-toggle[aria-expanded="true"] .hamburger span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
  position: relative;
  width: 100%;
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  padding-top: calc(var(--spacing-xl) + 60px);
  background: radial-gradient(ellipse at center top, var(--bg-tertiary) 0%, var(--bg-primary) 70%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  opacity: 0.3;
  pointer-events: none;
}

.hero-logo {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  pointer-events: none;
  overflow: hidden;
}

.hero-logo::before {
  content: 'FindFlix';
  font-family: inherit;
  font-size: clamp(150px, 30vw, 400px);
  font-weight: 800;
  background: linear-gradient(180deg, rgba(235, 111, 70, 0.15) 0%, rgba(235, 111, 70, 0.03) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -5px;
  user-select: none;
}

.hero-sub {
  position: relative;
  z-index: 2;
  color: var(--text-secondary);
  font-size: clamp(0.95rem, 2.5vw, 1.2rem);
  text-align: center;
  max-width: 600px;
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

/* ==========================================
   SEARCH BAR
   ========================================== */
.search-bar {
  position: relative;
  z-index: 10;
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 700px;
  padding: 0 var(--spacing-sm);
}

.search-input-wrapper {
  position: relative;
  flex: 1;
  min-width: 250px;
  max-width: 400px;
}

.search-bar input[type="text"] {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  padding-left: 48px;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition-smooth);
}

.search-bar input[type="text"]::placeholder {
  color: var(--text-muted);
}

.search-bar input[type="text"]:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow);
  background: var(--bg-card-hover);
}

/* Search icon */
.search-input-wrapper::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  pointer-events: none;
  z-index: 1;
}

.search-bar select {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-smooth);
  min-width: 130px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23CCCCCC' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.search-bar select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow);
}

.search-bar select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: var(--bg-tertiary);
}

/* ==========================================
   SUGGESTIONS DROPDOWN
   ========================================== */
.suggestions {
  position: fixed;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  max-height: 300px;
  overflow-y: auto;
  z-index: 9999;
}

.suggestion-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  border-bottom: 1px solid var(--border-color);
}

.suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-item:hover,
.suggestion-item.active {
  background: var(--bg-card-hover);
}

.suggestion-thumb {
  width: 50px;
  height: 70px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.suggestion-title {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.suggestion-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ==========================================
   CAROUSEL / MAIN CONTENT
   ========================================== */
.carousel {
  position: relative;
  width: 95%;
  max-width: 1400px;
  margin: var(--spacing-lg) auto;
  padding: var(--spacing-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.meta {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border-color);
}

#info {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--spacing-xs) 0;
}

#stats {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

/* ==========================================
   EPISODES GRID
   ========================================== */
#episodes {
  display: flex;
  gap: var(--spacing-md);
  overflow-x: auto;
  padding: var(--spacing-md) var(--spacing-xs);
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-primary) var(--bg-tertiary);
}

#episodes::-webkit-scrollbar {
  height: 8px;
}

#episodes::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

#episodes::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 4px;
}

#episodes::-webkit-scrollbar-thumb:hover {
  background: var(--accent-hover);
}

/* ==========================================
   EPISODE CARDS
   ========================================== */
.episode {
  flex: 0 0 220px;
  width: 220px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-smooth);
  border: 2px solid transparent;
  opacity: 0;
  transform: translateY(20px);
  animation: cardFadeIn 0.4s ease forwards;
}

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

.episode:hover {
  transform: translateY(-8px) scale(1.03);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.episode:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow);
}

.episode img {
  width: 100%;
  height: 124px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-smooth);
}

.episode:hover img {
  transform: scale(1.05);
}

.ep-meta {
  padding: var(--spacing-sm);
  text-align: center;
}

.ep-season {
  font-size: 0.8rem;
  color: var(--accent-primary);
  font-weight: 600;
  margin: 0 0 var(--spacing-xs) 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.ep-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Selected Episode */
.episode.selected {
  border-color: var(--accent-secondary);
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  transform: translateY(-8px) scale(1.05);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.episode.selected .ep-season,
.episode.selected .ep-title {
  color: var(--text-primary);
}

/* ==========================================
   RANDOM BUTTON
   ========================================== */
.random-btn {
  display: block;
  width: 100%;
  max-width: 300px;
  margin: var(--spacing-lg) auto 0;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 700;
  font-family: inherit;
  border: none;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-smooth);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.random-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow), var(--shadow-md);
  background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent-primary) 100%);
}

.random-btn:active {
  transform: translateY(-1px);
}

/* ==========================================
   LOADER
   ========================================== */
.loader {
  width: 40px;
  height: 40px;
  border: 4px solid var(--bg-tertiary);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: var(--spacing-lg) auto;
}

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

/* ==========================================
   MESSAGES
   ========================================== */
.empty-message,
.error-message {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-muted);
  font-size: 1rem;
  width: 100%;
}

.error-message {
  color: var(--accent-primary);
}

/* ==========================================
   RESPONSIVE - LARGE DESKTOP (1440px+)
   ========================================== */
@media (min-width: 1440px) {
  .hero {
    min-height: 55vh;
  }
  
  .episode {
    flex: 0 0 260px;
    width: 260px;
  }
  
  .episode img {
    height: 146px;
  }
  
  #episodes {
    gap: var(--spacing-lg);
  }
}

/* ==========================================
   RESPONSIVE - TABLET LANDSCAPE (768px - 1024px)
   ========================================== */
@media (min-width: 768px) and (max-width: 1024px) {
  .hero {
    min-height: 45vh;
    padding-top: calc(var(--spacing-lg) + 60px);
  }
  
  .search-bar {
    max-width: 600px;
  }
  
  .carousel {
    width: 96%;
    padding: var(--spacing-md);
  }
  
  .episode {
    flex: 0 0 200px;
    width: 200px;
  }
  
  .episode img {
    height: 112px;
  }
}

/* ==========================================
   RESPONSIVE - TABLET PORTRAIT (481px - 767px)
   ========================================== */
@media (min-width: 481px) and (max-width: 767px) {
  .hero {
    min-height: 40vh;
    padding: var(--spacing-lg) var(--spacing-sm);
    padding-top: calc(var(--spacing-lg) + 60px);
  }
  
  .hero-sub {
    font-size: 0.95rem;
    padding: 0 var(--spacing-sm);
  }
  
  .search-bar {
    flex-direction: column;
    width: 100%;
    max-width: 400px;
  }
  
  .search-input-wrapper {
    width: 100%;
    max-width: none;
    min-width: 0;
  }
  
  .search-bar select {
    width: 100%;
  }
  
  .carousel {
    width: 98%;
    padding: var(--spacing-sm);
    margin: var(--spacing-md) auto;
  }
  
  .episode {
    flex: 0 0 170px;
    width: 170px;
  }
  
  .episode img {
    height: 96px;
  }
  
  .ep-title {
    font-size: 0.85rem;
  }
  
  .random-btn {
    width: 100%;
    max-width: none;
  }
}

/* ==========================================
   RESPONSIVE - MOBILE (320px - 480px)
   ========================================== */
@media (max-width: 480px) {
  :root {
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
  }
  
  .header {
    padding: var(--spacing-sm);
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .logo {
    font-size: 1.5rem;
  }
  
  .hero {
    min-height: 35vh;
    padding: var(--spacing-md);
    padding-top: calc(var(--spacing-md) + 60px);
  }
  
  .hero-logo::before {
    font-size: clamp(80px, 35vw, 150px);
  }
  
  .hero-sub {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
  }
  
  .search-bar {
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
    padding: 0;
  }
  
  .search-input-wrapper {
    width: 100%;
    min-width: 0;
  }
  
  .search-bar input[type="text"] {
    padding: var(--spacing-sm);
    padding-left: 44px;
    font-size: 0.95rem;
  }
  
  .search-bar select {
    width: 100%;
    padding: var(--spacing-sm);
  }
  
  .carousel {
    width: 100%;
    border-radius: 0;
    border-left: none;
    border-right: none;
    padding: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
  }
  
  #info {
    font-size: 1rem;
  }
  
  #episodes {
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
  }
  
  .episode {
    flex: 0 0 150px;
    width: 150px;
  }
  
  .episode img {
    height: 84px;
  }
  
  .ep-meta {
    padding: var(--spacing-xs);
  }
  
  .ep-season {
    font-size: 0.7rem;
  }
  
  .ep-title {
    font-size: 0.8rem;
  }
  
  .random-btn {
    width: 100%;
    max-width: none;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    border-radius: var(--radius-md);
  }
  
  .suggestions {
    max-height: 200px;
  }
  
  .suggestion-thumb {
    width: 40px;
    height: 56px;
  }
}

/* ==========================================
   RESPONSIVE - VERY SMALL (320px - 380px)
   ========================================== */
@media (max-width: 380px) {
  .logo {
    font-size: 1.3rem;
  }
  
  .hero {
    min-height: 30vh;
  }
  
  .hero-sub {
    font-size: 0.85rem;
  }
  
  .episode {
    flex: 0 0 130px;
    width: 130px;
  }
  
  .episode img {
    height: 73px;
  }
}

/* ==========================================
   LANDSCAPE MOBILE
   ========================================== */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    min-height: 100vh;
    padding-top: 80px;
  }
  
  .carousel {
    margin-top: var(--spacing-sm);
  }
  
  .episode {
    flex: 0 0 140px;
    width: 140px;
  }
  
  .episode img {
    height: 79px;
  }
}

/* ==========================================
   TOUCH DEVICES
   ========================================== */
@media (hover: none) and (pointer: coarse) {
  .episode,
  .random-btn,
  .suggestion-item {
    -webkit-tap-highlight-color: rgba(235, 111, 70, 0.2);
  }
  
  .episode:active {
    transform: scale(0.97);
  }
  
  .random-btn:active {
    transform: scale(0.98);
  }
}

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

/* ==========================================
   FOCUS STATES (Accessibility)
   ========================================== */
:focus-visible {
  outline: 3px solid var(--accent-primary);
  outline-offset: 2px;
}

button:focus:not(:focus-visible),
input:focus:not(:focus-visible),
select:focus:not(:focus-visible) {
  outline: none;
}

/* ==========================================
   PRINT STYLES
   ========================================== */
@media print {
  .header,
  .search-bar,
  .random-btn {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .carousel {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}