/* ==========================================================================
   MUJIES STREAMING - CORE DESIGN SYSTEM & FOUNDATIONS
   ========================================================================== */

:root {
  /* Brand Core Tokens (Cinema Crimson & Amber Gold) */
  --brand-primary: #e50914;
  --brand-primary-hover: #b80710;
  --brand-primary-light: #ff4d4f;
  --brand-primary-glow: rgba(229, 9, 20, 0.22);
  --brand-primary-subtle: rgba(229, 9, 20, 0.08);

  --brand-accent: #f59e0b;
  --brand-accent-hover: #d97706;
  --brand-accent-light: #fbbf24;
  --brand-accent-glow: rgba(245, 158, 11, 0.2);
  --brand-accent-subtle: rgba(245, 158, 11, 0.08);

  --accent-gradient: linear-gradient(135deg, #e50914 0%, #dc2626 50%, #b80710 100%);
  --accent-gradient-text: linear-gradient(135deg, #e50914 0%, #ef4444 50%, #f59e0b 100%);
  --accent-gradient-subtle: linear-gradient(135deg, rgba(229, 9, 20, 0.08), rgba(245, 158, 11, 0.08));

  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;

  /* Typography - Clean Modern Inter */
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: var(--font-family);

  /* Spacing & Sizing */
  --container-max-w: 1280px;
  --nav-height: 76px;
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-medium: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

  /* =========================================================================
     LIGHT THEME (Default)
     ========================================================================= */
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-card-active: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.82);
  --nav-bg: rgba(255, 255, 255, 0.88);
  --nav-scrolled-bg: rgba(255, 255, 255, 0.98);

  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-strong: #94a3b8;
  --border-glow: rgba(229, 9, 20, 0.2);
  --border-highlight: rgba(229, 9, 20, 0.3);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-highlight: #e50914;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 16px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12), 0 4px 12px -2px rgba(15, 23, 42, 0.06);
  --shadow-brand: 0 8px 24px -4px rgba(229, 9, 20, 0.28);
  --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.06);

  --hero-glow: radial-gradient(circle at 50% 20%, rgba(229, 9, 20, 0.07) 0%, rgba(245, 158, 11, 0.04) 35%, transparent 70%);
  --hero-glow-1: rgba(229, 9, 20, 0.05);
  --hero-glow-2: rgba(245, 158, 11, 0.03);
  --grid-line-color: rgba(15, 23, 42, 0.035);

  /* Compatibility Aliases */
  --bg-black: var(--bg-main);
  --bg-darker: var(--bg-surface-elevated);
  --cyan-primary: var(--brand-primary);
  --cyan-bright: #dc2626;
  --cyan-glow: var(--brand-primary-glow);
  --purple-primary: var(--brand-accent);
  --purple-light: #d97706;
  --purple-glow: var(--brand-accent-glow);
  --border-purple-glow: rgba(245, 158, 11, 0.25);
  --shadow-neon-cyan: var(--shadow-brand);
  --shadow-neon-purple: 0 6px 20px rgba(245, 158, 11, 0.25);
  --shadow-neon-dual: 0 10px 30px rgba(229, 9, 20, 0.2), 0 0 40px rgba(245, 158, 11, 0.1);
}

/* =========================================================================
   DARK THEME OVERRIDES (Midnight Slate)
   ========================================================================= */
:root[data-theme="dark"] {
  --bg-main: #0b0f17;
  --bg-surface: #111827;
  --bg-surface-elevated: #1a2234;
  --bg-card: rgba(17, 24, 39, 0.85);
  --bg-card-hover: rgba(26, 34, 52, 0.95);
  --bg-card-active: rgba(36, 48, 74, 0.98);
  --bg-glass: rgba(17, 24, 39, 0.72);
  --nav-bg: rgba(11, 15, 23, 0.82);
  --nav-scrolled-bg: rgba(11, 15, 23, 0.96);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.15);
  --border-strong: rgba(255, 255, 255, 0.25);
  --border-glow: rgba(229, 9, 20, 0.35);
  --border-highlight: rgba(229, 9, 20, 0.45);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-highlight: #ff4d4f;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.7);
  --shadow-brand: 0 8px 26px -2px rgba(229, 9, 20, 0.45);
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);

  --hero-glow: radial-gradient(circle at 50% 20%, rgba(229, 9, 20, 0.16) 0%, rgba(245, 158, 11, 0.08) 40%, transparent 70%);
  --hero-glow-1: rgba(229, 9, 20, 0.12);
  --hero-glow-2: rgba(245, 158, 11, 0.08);
  --grid-line-color: rgba(255, 255, 255, 0.02);

  /* Component Compatibility Aliases */
  --bg-black: var(--bg-main);
  --bg-darker: var(--bg-surface);
  --cyan-primary: var(--brand-primary);
  --cyan-bright: #ff4d4f;
  --cyan-glow: var(--brand-primary-glow);
  --purple-primary: var(--brand-accent);
  --purple-light: #fbbf24;
  --purple-glow: var(--brand-accent-glow);
  --border-purple-glow: rgba(245, 158, 11, 0.3);
  --shadow-neon-cyan: var(--shadow-brand);
  --shadow-neon-purple: 0 8px 25px rgba(245, 158, 11, 0.3);
  --shadow-neon-dual: 0 10px 35px rgba(229, 9, 20, 0.3), 0 0 50px rgba(245, 158, 11, 0.15);
}

/* ==========================================================================
   RESET & BASE
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
  color-scheme: light;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

html[data-theme="dark"] {
  color-scheme: dark;
}

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-family);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

/* Ambient refined lighting */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 100vh;
  background: 
    radial-gradient(ellipse 80% 60% at 50% -10%, var(--hero-glow-1), transparent 70%),
    radial-gradient(ellipse 60% 50% at 85% 40%, var(--hero-glow-2), transparent 60%),
    radial-gradient(ellipse 60% 50% at 15% 70%, var(--hero-glow-1), transparent 60%);
  pointer-events: none;
  z-index: -2;
  transition: opacity var(--transition-medium);
}

/* Subtle modern grid overlay */
.bg-grid-overlay {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, var(--grid-line-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line-color) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  z-index: -1;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000 40%, transparent 100%);
}

/* Base typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

p {
  color: var(--text-secondary);
}

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

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

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

/* ==========================================================================
   LAYOUT CONTAINERS & UTILITIES
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section {
  padding-block: 6rem;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: 4rem;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: var(--brand-primary-subtle);
  border: 1px solid var(--border-glow);
  color: var(--brand-primary);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.badge-tag.purple {
  background: var(--brand-accent-subtle);
  border-color: var(--border-purple-glow);
  color: var(--brand-accent);
}

.section-title {
  font-size: clamp(2rem, 3.5vw + 1rem, 3rem);
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

.section-subtitle {
  font-size: clamp(1rem, 1.15vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Text Gradients & Highlights */
.text-gradient {
  background: var(--accent-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-cyan {
  color: var(--brand-primary);
}

.text-purple {
  color: var(--brand-accent);
}

/* Refined Pill Dot */
.glow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--brand-primary);
  box-shadow: 0 0 8px var(--brand-primary-glow);
  display: inline-block;
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.85); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.65rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--brand-primary);
  color: #ffffff !important;
  font-weight: 600;
  box-shadow: var(--shadow-brand);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: var(--brand-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px -4px rgba(229, 9, 20, 0.45);
  color: #ffffff !important;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-medium);
  transform: translateY(-2px);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

.btn-cyan-outline {
  background: var(--brand-primary-subtle);
  color: var(--brand-primary);
  border: 1px solid var(--border-glow);
  font-weight: 600;
}

.btn-cyan-outline:hover {
  background: var(--brand-primary);
  color: #ffffff;
  border-color: var(--brand-primary);
  box-shadow: var(--shadow-brand);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 2.15rem;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.875rem;
}

/* Glass Card */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  position: relative;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-fast);
}

.glass-panel:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

/* Theme Toggle Button in Navigation */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.theme-toggle-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
  transform: scale(1.05);
}

.theme-toggle-btn svg {
  transition: transform var(--transition-medium);
}

.theme-toggle-btn:hover svg {
  transform: rotate(15deg);
}

/* Sun/Moon visibility by theme */
[data-theme="light"] .theme-icon-moon,
:root:not([data-theme="dark"]) .theme-icon-moon {
  display: block;
}
[data-theme="light"] .theme-icon-sun,
:root:not([data-theme="dark"]) .theme-icon-sun {
  display: none;
}

[data-theme="dark"] .theme-icon-moon {
  display: none;
}
[data-theme="dark"] .theme-icon-sun {
  display: block;
}