/* =============================================
   AlleyAI — Design System & Styles
   ============================================= */

/* === 1. CSS Custom Properties === */
:root {
  /* Backgrounds — layered depth */
  --color-bg:            #030711;
  --color-bg-secondary:  #0a1628;
  --color-bg-tertiary:   #111d35;
  --color-surface:       #162544;

  /* Accent colors */
  --color-accent:        #0ea5e9;
  --color-accent-hover:  #38bdf8;
  --color-accent-glow:   rgba(14, 165, 233, 0.2);
  --color-secondary:     #8b5cf6;
  --color-secondary-glow: rgba(139, 92, 246, 0.2);

  /* Text */
  --color-text-primary:  #f1f5f9;
  --color-text-secondary:#94a3b8;
  --color-text-muted:    #475569;

  /* Borders */
  --color-border:        rgba(255, 255, 255, 0.06);
  --color-border-light:  rgba(255, 255, 255, 0.1);

  /* Glass */
  --glass-bg:            rgba(255, 255, 255, 0.03);
  --glass-bg-hover:      rgba(255, 255, 255, 0.06);
  --glass-border:        rgba(255, 255, 255, 0.08);
  --glass-border-hover:  rgba(14, 165, 233, 0.3);

  /* States */
  --color-card-hover-bg: rgba(14, 165, 233, 0.06);
  --color-success-bg:    #052e16;
  --color-success-text:  #4ade80;
  --color-error-bg:      #450a0a;
  --color-error-text:    #f87171;
  --color-warning-bg:    #422006;
  --color-warning-text:  #fdba74;

  /* Radii */
  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-full: 9999px;

  /* Legacy aliases */
  --border-radius-sm: var(--radius-sm);
  --border-radius-md: var(--radius-md);
  --border-radius-lg: var(--radius-lg);
  --border-radius-xl: var(--radius-xl);

  /* Shadows */
  --shadow-sm:   0 1px 3px rgba(0, 0, 0, 0.5);
  --shadow-md:   0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg:   0 8px 32px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.03);
  --shadow-glow: 0 0 30px var(--color-accent-glow), 0 0 60px rgba(14, 165, 233, 0.05);
  --shadow-card: 0 2px 10px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.04);
  --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(14, 165, 233, 0.15), 0 0 40px rgba(14, 165, 233, 0.08);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Accent transparent */
  --color-accent-light: rgba(14, 165, 233, 0.08);
}


/* === 2. Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--color-bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(14, 165, 233, 0.12), transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 100%, rgba(139, 92, 246, 0.1), transparent 60%),
    radial-gradient(ellipse 40% 30% at 10% 50%, rgba(14, 165, 233, 0.06), transparent 50%);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Subtle noise texture overlay for depth */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  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)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

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

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

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


/* === 3. Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--color-text-primary);
}


/* === 4. Keyframe Animations === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(30px, -20px) scale(1.05); }
  66%      { transform: translate(-20px, 15px) scale(0.95); }
}

@keyframes rippleExpand {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

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

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


/* === 5. Scroll Reveal === */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* === 6. Header === */
header {
  background: rgba(3, 7, 17, 0.85);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  color: var(--color-text-primary);
  padding: 0.85rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(14, 165, 233, 0.12);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.03),
    0 4px 30px rgba(0, 0, 0, 0.4),
    0 0 80px rgba(14, 165, 233, 0.04);
  transition: padding var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}

header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(14, 165, 233, 0.3), rgba(139, 92, 246, 0.2), transparent);
}

header.header--scrolled {
  padding: 0.55rem 2rem;
  background: rgba(3, 7, 17, 0.95);
  box-shadow:
    0 4px 30px rgba(0, 0, 0, 0.5),
    0 0 60px rgba(14, 165, 233, 0.06);
}

header .logo {
  display: flex;
  align-items: center;
  gap: 1rem;
}

header .logo a {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #38bdf8, var(--color-accent), var(--color-secondary));
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
  transition: background-position 0.5s ease;
  text-shadow: 0 0 30px rgba(14, 165, 233, 0.3);
}

header .logo a:hover {
  background-position: 100% 0;
}

/* Search form in header */
.search-form {
  display: flex;
  align-items: center;
  position: relative;
}

.search-form input[type="search"] {
  padding: 0.5rem 0.75rem 0.5rem 2.25rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-primary);
  font-size: 0.875rem;
  min-width: 220px;
  transition: all var(--transition-base);
  outline: none;
}

.search-form input[type="search"]:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow), 0 0 20px rgba(14, 165, 233, 0.1);
  background: rgba(14, 165, 233, 0.06);
}

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

.search-form .search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
  pointer-events: none;
}

.search-form .btn-search {
  display: none;
}

/* Navigation */
header nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

header nav ul li a {
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
}

header nav ul li a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
  border-radius: 1px;
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

header nav ul li a:hover {
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.04);
  text-decoration: none;
}

header nav ul li a:hover::after {
  width: 60%;
}

header nav ul li a.nav-admin {
  color: #facc15;
}

header nav ul li a.nav-admin:hover {
  background: rgba(250, 204, 21, 0.08);
}

/* Hamburger menu button */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav overlay */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.mobile-nav-overlay.active {
  opacity: 1;
}


/* === 7. Footer === */
footer {
  background: linear-gradient(180deg, var(--color-bg-secondary), rgba(3, 7, 17, 0.95));
  border-top: none;
  padding: 2.5rem 2rem;
  margin-top: auto;
  position: relative;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(14, 165, 233, 0.4), rgba(139, 92, 246, 0.3), transparent);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.footer-right {
  display: flex;
  gap: 1.5rem;
}

.footer-right a {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

.footer-right a:hover {
  color: var(--color-text-secondary);
}

.footer-copy {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}


/* === 8. Main Content Layout === */
.main-content {
  flex: 1;
  padding: 2rem;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

.main-content h1,
.main-content > h2,
.category-content h1 {
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.main-content h1 {
  font-size: 2.25rem;
  background: linear-gradient(135deg, #ffffff 20%, var(--color-accent) 80%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 40px rgba(14, 165, 233, 0.15);
}


/* === 9. Buttons === */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--color-accent), #0284c7, var(--color-secondary));
  background-size: 200% 100%;
  color: white;
  padding: 0.8rem 2rem;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  text-decoration: none;
  box-shadow:
    0 2px 12px rgba(14, 165, 233, 0.3),
    0 0 0 1px rgba(14, 165, 233, 0.15) inset;
  position: relative;
  overflow: hidden;
  margin-top: 1rem;
  letter-spacing: 0.01em;
}

.btn-primary:hover {
  background-position: 100% 0;
  transform: translateY(-3px);
  box-shadow:
    0 6px 24px rgba(14, 165, 233, 0.4),
    0 0 60px rgba(14, 165, 233, 0.15),
    0 0 0 1px rgba(14, 165, 233, 0.2) inset;
  color: white;
  text-decoration: none;
}

.btn-primary:active {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
}

/* Ripple container */
.btn-primary .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  width: 20px;
  height: 20px;
  pointer-events: none;
  animation: rippleExpand 0.6s ease-out forwards;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--glass-bg);
  color: var(--color-text-primary);
  border: 1px solid var(--glass-border);
  padding: 0.8rem 2rem;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  margin-top: 1rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-3px);
  text-decoration: none;
  color: var(--color-text-primary);
  box-shadow: 0 4px 20px rgba(14, 165, 233, 0.1);
}


/* === 10. Welcome / Hero Section === */
.welcome-container {
  max-width: 860px;
  margin: 2rem auto;
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, rgba(10, 22, 40, 0.95), rgba(17, 29, 53, 0.95));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(14, 165, 233, 0.15);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.03),
    0 8px 40px rgba(0, 0, 0, 0.5),
    0 0 80px rgba(14, 165, 233, 0.08),
    0 0 120px rgba(139, 92, 246, 0.04);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.welcome-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), var(--color-secondary), var(--color-accent), transparent);
  background-size: 200% 100%;
  animation: gradientShift 3s ease infinite;
}

.welcome-container::after {
  content: '';
  position: absolute;
  top: -80%;
  right: -30%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.07), rgba(139, 92, 246, 0.03) 40%, transparent 70%);
  pointer-events: none;
  animation: float 20s ease-in-out infinite;
}

.welcome-container h1 {
  margin-top: 0;
  font-size: 2rem;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(135deg, #ffffff 30%, var(--color-accent) 70%, var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 1;
}

.welcome-container h2 {
  color: var(--color-text-primary);
  margin-top: 2rem;
  font-size: 1.5rem;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.welcome-container p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

/* Hero section for logged-out users */
.hero-section {
  position: relative;
  padding: 6rem 2rem;
  text-align: center;
  overflow: hidden;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

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

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  animation: float 15s ease-in-out infinite;
}

.hero-orb:nth-child(1) {
  width: 500px;
  height: 500px;
  background: rgba(14, 165, 233, 0.2);
  top: -15%;
  right: -10%;
  animation-delay: 0s;
}

.hero-orb:nth-child(2) {
  width: 450px;
  height: 450px;
  background: rgba(139, 92, 246, 0.15);
  bottom: -20%;
  left: -10%;
  animation-delay: -5s;
}

.hero-orb:nth-child(3) {
  width: 300px;
  height: 300px;
  background: rgba(14, 165, 233, 0.12);
  top: 35%;
  left: 45%;
  animation-delay: -10s;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 750px;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff 20%, var(--color-accent) 60%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.hero-content p {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
  line-height: 1.7;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-content .btn-primary {
  font-size: 1.05rem;
  padding: 1rem 2.5rem;
  border-radius: var(--radius-lg);
}

/* Feature cards below hero */
.feature-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 860px;
  margin: 4rem auto 0;
  position: relative;
  z-index: 1;
}

.feature-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all var(--transition-base);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.feature-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
  filter: drop-shadow(0 0 8px rgba(14, 165, 233, 0.3));
}

.feature-card h3 {
  font-size: 1.05rem;
  margin: 0 0 0.5rem;
  color: var(--color-text-primary);
  position: relative;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
  position: relative;
}


/* === 11. User Info & Subscription === */
.user-info {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
  border: 1px solid var(--glass-border);
  border-left: 3px solid var(--color-accent);
  position: relative;
  z-index: 1;
}

.user-info h3 {
  color: var(--color-text-primary);
  margin-top: 0;
  font-size: 1.15rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.user-info p {
  margin-bottom: 0.6rem;
}

.user-info p strong {
  color: var(--color-text-primary);
  font-weight: 500;
}

.subscription-status {
  margin-top: 1.25rem;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.subscription-status::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px 2px 0 0;
}

.subscription-status.active {
  background: linear-gradient(135deg, rgba(5, 46, 22, 0.8), rgba(22, 101, 52, 0.4));
  color: var(--color-success-text);
  border: 1px solid rgba(74, 222, 128, 0.2);
  box-shadow: 0 0 30px rgba(74, 222, 128, 0.05);
}

.subscription-status.active::before {
  background: linear-gradient(90deg, transparent, rgba(74, 222, 128, 0.6), transparent);
}

.subscription-status.inactive {
  background: linear-gradient(135deg, rgba(69, 10, 10, 0.8), rgba(153, 27, 27, 0.4));
  color: var(--color-error-text);
  border: 1px solid rgba(248, 113, 113, 0.2);
  box-shadow: 0 0 30px rgba(248, 113, 113, 0.05);
}

.subscription-status.inactive::before {
  background: linear-gradient(90deg, transparent, rgba(248, 113, 113, 0.6), transparent);
}

.subscription-status p {
  color: inherit;
  margin-bottom: 0.5rem;
  opacity: 0.9;
}

.subscription-status p strong {
  opacity: 1;
}

.expiration-warning {
  background: linear-gradient(135deg, rgba(234, 88, 12, 0.15), rgba(234, 88, 12, 0.05));
  color: var(--color-warning-text);
  font-weight: 500;
  padding: 0.75rem 1rem;
  margin-top: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(253, 186, 116, 0.15);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feedback-error {
  color: var(--color-error-text);
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
}


/* === 12. Cards — Collection === */
.collection-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: 1.5rem;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  color: var(--color-text-primary);
  transition: all var(--transition-base);
  cursor: pointer;
  width: 220px;
  height: 220px;
  margin: 0 auto;
  border: 1px solid var(--glass-border);
  position: relative;
}

.collection-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  border: 2px solid transparent;
  background: linear-gradient(135deg, var(--color-accent), var(--color-secondary)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.collection-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  background: radial-gradient(circle at 50% 120%, rgba(14, 165, 233, 0.1), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.collection-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-card-hover);
  border-color: transparent;
}

.collection-card:hover::before {
  opacity: 1;
}

.collection-card:hover::after {
  opacity: 1;
}

.collection-card h2 {
  font-size: 1.15rem;
  margin: 0;
  text-align: center;
  font-weight: 600;
  border-bottom: none;
  position: relative;
  z-index: 1;
}

.collection-logo-image {
  display: block;
  max-width: 85%;
  max-height: 85%;
  margin: 0 auto;
  object-fit: contain;
  transition: all var(--transition-base);
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

.collection-card:hover .collection-logo-image {
  transform: scale(1.08);
  filter: drop-shadow(0 4px 16px rgba(14, 165, 233, 0.2));
}

#category-grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.75rem;
  margin-top: 2rem;
}


/* === 13. Cards — Category === */
.category-item {
  display: block;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.5rem;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-base);
  text-decoration: none;
  color: var(--color-text-primary);
  text-align: left;
  border: 1px solid var(--glass-border);
  border-left: 3px solid var(--color-accent);
  position: relative;
  overflow: hidden;
}

.category-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.06), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.category-item:hover {
  transform: translateX(4px) translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(14, 165, 233, 0.15);
  border-left-color: var(--color-accent-hover);
  text-decoration: none;
  color: var(--color-text-primary);
}

.category-item:hover::after {
  opacity: 1;
}

.category-item h3 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

#categories-container .category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

/* Major section items (e.g., Osmosis) */
.major-section-item {
  background: linear-gradient(145deg, rgba(14, 165, 233, 0.06), var(--glass-bg));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-text-primary);
  padding: 2rem 1.5rem;
  text-align: center;
  min-height: 130px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  border-left: 3px solid var(--color-accent);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.major-section-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
}

.major-section-item h3 {
  font-size: 1.4rem;
  margin: 0 0 0.5rem;
  font-weight: 600;
}

.major-section-item:hover {
  transform: translateX(4px) translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-left-color: var(--color-secondary);
}

.major-section-item .section-info {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.major-section-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: 1.5rem;
}


/* === 14. Cards — Video === */
.video-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 0.6rem;
  text-align: left;
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  scroll-margin-top: 90px;
}

.video-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(14, 165, 233, 0.2);
  text-decoration: none;
  color: var(--color-text-primary);
}

.video-item h3, .video-item h4 {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  line-height: 1.35;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  font-weight: 500;
}

.thumbnail-container {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.video-thumbnail-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, filter var(--transition-base);
}

.video-item:hover .video-thumbnail-image {
  transform: scale(1.05);
  filter: brightness(1.1);
}

/* Play overlay on thumbnails */
.thumbnail-container::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: opacity var(--transition-base);
  border-radius: var(--radius-md);
}

.video-item:hover .thumbnail-container::after {
  opacity: 1;
}

.play-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 44px;
  height: 44px;
  background: rgba(14, 165, 233, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base), transform var(--transition-base);
  z-index: 2;
}

.play-overlay::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 8px 0 8px 14px;
  border-color: transparent transparent transparent white;
  margin-left: 3px;
}

.video-item:hover .play-overlay {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.thumbnail-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.thumbnail-placeholder.fallback {
  background: linear-gradient(135deg, var(--color-bg-tertiary), var(--color-bg-secondary));
  color: var(--color-text-muted);
  font-size: 1.75rem;
}


/* === 15. Grid Layouts === */
.category-grid,
.video-grid {
  display: grid;
  gap: 1.25rem;
}

.category-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.video-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Override for category-view video grid */
.category-content .video-grid {
  grid-template-columns: repeat(auto-fit, 180px);
  gap: 1rem;
  justify-content: start;
}


/* === 16. Category View (Sidebar + Content) === */
.category-view-container {
  display: flex;
  gap: 2rem;
  padding: 2rem;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
}

.category-index {
  width: 280px;
  flex-shrink: 0;
  position: sticky;
  top: 80px;
  align-self: flex-start;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 1.5rem;
  border: 1px solid var(--glass-border);
}

.category-index h2 {
  margin: 0 0 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 1.15rem;
  font-weight: 600;
}

.index-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.index-list > li {
  margin-bottom: 1.25rem;
}

.index-list > li > a {
  display: block;
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.4rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  text-decoration: none;
}

.index-list > li > a:hover {
  color: var(--color-accent);
  background: var(--color-accent-light);
  text-decoration: none;
}

.index-video-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0 0.75rem;
}

.index-video-list li {
  margin: 0.15rem 0;
}

.index-video-list a {
  display: block;
  color: var(--color-text-muted);
  font-size: 0.82rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  text-decoration: none;
}

.index-video-list a:hover {
  color: var(--color-accent);
  background: var(--color-accent-light);
  text-decoration: none;
}

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

.subcategory-section h2 {
  scroll-margin-top: 90px;
  margin-top: 2.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 1.2rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--color-text-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}


/* === 17. Breadcrumbs === */
.breadcrumb-container {
  background: rgba(10, 22, 40, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 0.85rem 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  z-index: 1;
  position: relative;
}

.breadcrumb-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 0.85rem;
}

.breadcrumb-list li {
  display: inline-flex;
  align-items: center;
  margin-right: 0.5rem;
  color: var(--color-text-muted);
}

.breadcrumb-list li:not(:last-child)::after {
  content: "\203A";
  margin-left: 0.5rem;
  opacity: 0.5;
  font-size: 1.1em;
}

.breadcrumb-list li a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumb-list li a:hover {
  color: var(--color-accent);
}

.breadcrumb-list li.current-page {
  font-weight: 600;
  color: var(--color-text-primary);
}


/* === 18. Video Player === */
#video-player-container {
  margin: 1.5rem 0;
  width: 100%;
  min-height: 200px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: #000;
  box-shadow:
    0 8px 40px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(255, 255, 255, 0.05);
}

#video-player-container video {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  display: block;
  background-color: #000;
  min-height: 200px;
}

.video-description {
  margin: 1.5rem 0;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.video-description h2 {
  font-size: 1.15rem;
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.video-navigation {
  margin: 2rem 0;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.video-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.button-like,
.back-to-category {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.25rem;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  transition: all var(--transition-base);
  font-size: 0.875rem;
  text-decoration: none;
}

.button-like:hover,
.back-to-category:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-3px);
  color: var(--color-text-primary);
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.1);
}

/* Related videos */
.related-videos {
  margin-top: 2rem;
}

.related-videos h2 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.related-videos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.related-video {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.related-video:hover {
  color: var(--color-text-primary);
}

.related-thumbnail {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.related-video span {
  font-size: 0.85rem;
  line-height: 1.3;
}


/* === 19. Noticias === */
.news-container {
  padding: 2rem;
  max-width: 860px;
  margin: 1rem auto;
  position: relative;
  z-index: 1;
}

.news-article {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 1.75rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.news-article:hover {
  border-color: rgba(14, 165, 233, 0.15);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.news-article::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(to right, var(--color-accent), var(--color-secondary), transparent);
}

.news-article h2 {
  color: var(--color-text-primary);
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.35rem;
}

.news-article h2 a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.news-article h2 a:hover {
  color: var(--color-accent);
}

.back-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
  display: inline-block;
  margin-bottom: 1.5rem;
}

.back-link:hover {
  color: var(--color-accent);
}

.news-article .meta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background: var(--color-bg-tertiary);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.news-article .content {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.news-article .content p { margin-bottom: 1em; }
.news-article .content strong { font-weight: bold; color: var(--color-text-primary); }
.news-article .content em { font-style: italic; }


/* === 20. Search === */
.search-container {
  padding: 2rem;
  max-width: 1280px;
  margin: 1rem auto;
}

.search-container h1 {
  margin-bottom: 1rem;
}

.search-container h1 .query-term {
  color: var(--color-accent);
}

.results-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.search-result-meta {
  color: var(--color-text-muted);
  font-size: 0.8rem;
  margin-top: 0.25rem;
}


/* === 21. Feedback (Payment) === */
.feedback-container {
  max-width: 560px;
  margin: 3rem auto;
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  text-align: center;
  border: 1px solid var(--glass-border);
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.feedback-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.feedback-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  line-height: 1;
}

.status-approved { color: var(--color-success-text); }
.status-pending  { color: var(--color-warning-text); }
.status-failure  { color: var(--color-error-text); }

.feedback-container h2 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.feedback-container p {
  margin-bottom: 1.25rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}


/* === 22. Error Pages === */
.error-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 2rem;
  min-height: 60vh;
  max-width: 560px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.error-container::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -60%);
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.12), rgba(139, 92, 246, 0.06) 40%, transparent 70%);
  animation: pulse 4s ease-in-out infinite;
  pointer-events: none;
  z-index: -1;
}

.error-container--warning::before {
  background: radial-gradient(circle, rgba(245, 158, 11, 0.12), rgba(234, 88, 12, 0.06) 40%, transparent 70%);
}

.error-container--danger::before {
  background: radial-gradient(circle, rgba(239, 68, 68, 0.12), rgba(190, 18, 60, 0.06) 40%, transparent 70%);
}

.error-code {
  font-size: 8rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 30px rgba(14, 165, 233, 0.3));
}

.error-container--warning .error-code {
  background: linear-gradient(135deg, #f59e0b, #ea580c);
  -webkit-background-clip: text;
  background-clip: text;
  filter: drop-shadow(0 0 30px rgba(245, 158, 11, 0.3));
}

.error-container--danger .error-code {
  background: linear-gradient(135deg, #ef4444, #be123c);
  -webkit-background-clip: text;
  background-clip: text;
  filter: drop-shadow(0 0 30px rgba(239, 68, 68, 0.3));
}

.error-container h1,
.error-title {
  font-size: 5rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 20px rgba(14, 165, 233, 0.3));
}

.error-container .error-message {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
  background: none;
  border: none;
  padding: 0;
  border-radius: 0;
  text-align: center;
}

.error-description {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  font-size: 1rem;
  line-height: 1.6;
  max-width: 400px;
}

/* Keep .error-message class for inline error messages (used in JS) — scoped outside error-container */
form .error-message,
.auth-container .error-message {
  background: linear-gradient(135deg, var(--color-error-bg), rgba(69, 10, 10, 0.5));
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin: 1.5rem 0;
  text-align: center;
  color: var(--color-error-text);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

.error-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-top: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.error-button {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--color-text-primary);
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  transition: all var(--transition-base);
  min-width: 180px;
  text-align: center;
  font-weight: 500;
}

.error-button:hover {
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
  color: var(--color-text-primary);
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(14, 165, 233, 0.1);
  transform: translateY(-2px);
}


/* === 23. Admin === */

/* --- Admin Container --- */
.admin-container {
  padding: 2.5rem;
  max-width: 900px;
  margin: 2rem auto;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.admin-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary), var(--color-accent));
  background-size: 200% 100%;
  animation: shimmer 3s ease-in-out infinite;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.admin-container h1 {
  font-size: 1.85rem;
  margin-bottom: 1.75rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Admin Stat Grid --- */
.admin-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.admin-stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 1.5rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text-primary);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.admin-stat-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, transparent, rgba(14, 165, 233, 0.1), transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.admin-stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-card-hover);
  text-decoration: none;
  color: var(--color-text-primary);
  background: var(--glass-bg-hover);
}

.admin-stat-card:hover::before {
  opacity: 1;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.15), rgba(139, 92, 246, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* --- Admin Section Title --- */
.admin-section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  position: relative;
}

.admin-section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
  border-radius: 1px;
}

/* --- Admin Quick Actions --- */
.admin-quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

/* --- Admin Links --- */
.admin-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.admin-links li a {
  display: block;
  padding: 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-left: 3px solid transparent;
  border-radius: var(--radius-md);
  text-align: center;
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-base);
}

.admin-links li a:hover {
  background: var(--glass-bg-hover);
  transform: translateY(-4px);
  border-color: var(--glass-border-hover);
  border-left-color: var(--color-accent);
  color: var(--color-text-primary);
  text-decoration: none;
  box-shadow: var(--shadow-card-hover);
}

/* --- News Card Layout --- */
.news-card-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.news-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-left: 3px solid rgba(14, 165, 233, 0.4);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  transition: all var(--transition-base);
}

.news-card:hover {
  border-color: var(--glass-border-hover);
  border-left-color: var(--color-accent);
  background: var(--glass-bg-hover);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(14, 165, 233, 0.1);
}

.news-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.news-card-title {
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: 0.95rem;
}

.news-card-date {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.news-card-preview {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.news-card-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* --- Admin Buttons --- */
.btn-add {
  display: inline-block;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
  color: white;
  border: none;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all var(--transition-base);
  box-shadow: 0 2px 12px rgba(14, 165, 233, 0.2);
}

.btn-add:hover {
  box-shadow: 0 4px 24px rgba(14, 165, 233, 0.35), 0 0 40px rgba(14, 165, 233, 0.1);
  transform: translateY(-2px);
  color: white;
  text-decoration: none;
}

.btn-edit {
  background: rgba(139, 92, 246, 0.15);
  color: #a78bfa;
  border: 1px solid rgba(139, 92, 246, 0.3);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.85em;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-edit:hover {
  background: rgba(139, 92, 246, 0.25);
  border-color: rgba(139, 92, 246, 0.5);
  color: #c4b5fd;
  text-decoration: none;
  box-shadow: 0 2px 12px rgba(139, 92, 246, 0.15);
}

.btn-delete {
  background: rgba(220, 38, 38, 0.15);
  color: #f87171;
  border: 1px solid rgba(220, 38, 38, 0.3);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.85em;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.btn-delete:hover {
  background: rgba(220, 38, 38, 0.25);
  border-color: rgba(220, 38, 38, 0.5);
  color: #fca5a5;
  box-shadow: 0 2px 12px rgba(220, 38, 38, 0.15);
}

.btn-toggle-sub {
  background: rgba(14, 165, 233, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(14, 165, 233, 0.3);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.85em;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.btn-toggle-sub:hover {
  background: rgba(14, 165, 233, 0.25);
  border-color: rgba(14, 165, 233, 0.5);
  color: #7dd3fc;
  box-shadow: 0 2px 12px rgba(14, 165, 233, 0.15);
}

/* --- Filter Form --- */
.filter-form {
  margin-bottom: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.filter-form input[type="text"],
.filter-form .filter-select {
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.2);
  color: var(--color-text-primary);
  flex-grow: 1;
  outline: none;
  font-size: 0.9rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.filter-form input[type="text"]:focus,
.filter-form .filter-select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.filter-form .filter-select {
  flex-grow: 0;
  min-width: 140px;
  cursor: pointer;
}

.filter-form button {
  background: linear-gradient(135deg, var(--color-accent), rgba(14, 165, 233, 0.8));
  color: white;
  border: none;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.filter-form button:hover {
  box-shadow: 0 2px 12px rgba(14, 165, 233, 0.25);
  transform: translateY(-1px);
}

/* --- Admin Tables (login-table, admin-users-table) --- */
.login-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.login-table th,
.login-table td {
  padding: 0.85rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.875rem;
}

.login-table thead {
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.login-table thead tr {
  border-bottom: 1px solid var(--glass-border);
}

.login-table th {
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(255, 255, 255, 0.02);
}

.login-table td {
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.login-table td.user-agent {
  max-width: 250px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.8em;
  color: var(--color-text-muted);
}

.login-table td.user-agent:hover {
  white-space: normal;
  overflow: visible;
}

.login-table tbody tr {
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
}

.login-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
  border-left-color: var(--color-accent);
  box-shadow: inset 0 0 30px rgba(14, 165, 233, 0.03);
}

.admin-users-table td:first-child {
  font-weight: 500;
}

/* --- Subscription Status Badges --- */
.badge-active {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  background: rgba(34, 197, 94, 0.15);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge-inactive {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

/* --- Admin Back Link --- */
.admin-back-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.admin-back-link:hover {
  color: var(--color-accent);
  text-decoration: none;
}

/* --- Toggle Switch --- */
.toggle-switch {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  user-select: none;
}

.toggle-switch input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: relative;
  width: 48px;
  height: 26px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 9999px;
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.toggle-slider::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: var(--color-text-muted);
  border-radius: 50%;
  transition: all var(--transition-base);
}

.toggle-switch input[type="checkbox"]:checked + .toggle-slider {
  background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
  border-color: rgba(14, 165, 233, 0.4);
  box-shadow: 0 0 16px rgba(14, 165, 233, 0.2);
}

.toggle-switch input[type="checkbox"]:checked + .toggle-slider::after {
  transform: translateX(22px);
  background: white;
}

.toggle-text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* --- Promo Status Indicator --- */
.promo-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.promo-status--active {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.25);
  color: #4ade80;
}

.promo-status--inactive {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #f87171;
}

.promo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.promo-status--active .promo-dot {
  background: #4ade80;
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

.promo-status--inactive .promo-dot {
  background: #f87171;
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
}

/* --- Empty Message --- */
.empty-message {
  color: var(--color-text-muted);
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.95rem;
}


/* === 24. Forms === */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="datetime-local"],
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input[type="text"]:focus,
.form-group input[type="datetime-local"]:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group textarea {
  min-height: 200px;
  resize: vertical;
}

.form-group input[type="checkbox"] {
  width: auto;
  margin-right: 0.5rem;
  transform: scale(1.2);
  accent-color: var(--color-accent);
}

.form-group .checkbox-label {
  display: inline-block;
  color: var(--color-text-primary);
}

.btn-submit {
  background: var(--color-accent);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition-fast);
}

.btn-submit:hover {
  background: var(--color-accent-hover);
}


/* === 25. Messages === */
.empty-message,
.empty-collection-message {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 1.5rem 0;
  text-align: center;
  font-style: italic;
  color: var(--color-text-muted);
  border: 1px dashed var(--color-border);
}


/* === 26. Scrollbar === */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--color-border-light);
  border-radius: 4px;
}

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


/* === 27. Toast Notifications === */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: white;
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.3s ease forwards;
  max-width: 360px;
}

.toast.toast-success {
  background: linear-gradient(135deg, #059669, #047857);
}

.toast.toast-error {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
}

.toast.toast-info {
  background: linear-gradient(135deg, var(--color-accent), #0284c7);
}


/* === 28. Skeleton Loaders === */
.skeleton {
  background: linear-gradient(90deg, var(--color-bg-secondary) 25%, var(--color-bg-tertiary) 50%, var(--color-bg-secondary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
  border-radius: var(--radius-md);
}

.skeleton-card {
  width: 100%;
  aspect-ratio: 16 / 9;
}

.skeleton-text {
  height: 1rem;
  width: 80%;
  margin-top: 0.5rem;
}


/* === 29. 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;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .hero-orb {
    animation: none;
  }
}


/* === 30. Responsive — 1280px === */
@media (max-width: 1280px) {
  .main-content {
    max-width: 1024px;
  }
}

/* === 31. Responsive — 1024px === */
@media (max-width: 1024px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }

  .feature-cards {
    gap: 1rem;
  }
}

/* === 31b. Video Player Controls === */
.player-controls-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.player-controls-row label {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}

.player-controls-row select {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.5rem;
  font-size: 0.85rem;
  cursor: pointer;
}

.player-controls-row select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.keyboard-hint {
  color: var(--color-text-muted);
  font-size: 0.75rem;
  opacity: 0.7;
  margin-left: auto;
}

@media (max-width: 768px) {
  .keyboard-hint {
    display: none;
  }
}

/* === 32. Responsive — 768px (Tablets) === */
@media (max-width: 768px) {
  /* Header mobile */
  .hamburger {
    display: flex;
  }

  header {
    padding: 0.75rem 1.25rem;
  }

  header nav {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    height: 100dvh;
    background: linear-gradient(180deg, rgba(3, 7, 17, 0.98), rgba(10, 22, 40, 0.98));
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-left: 1px solid rgba(14, 165, 233, 0.1);
    padding: 5rem 1.5rem 2rem;
    transition: right var(--transition-base);
    z-index: 1000;
    box-shadow: -8px 0 40px rgba(0, 0, 0, 0.5);
  }

  header nav.nav-open {
    right: 0;
  }

  header nav ul {
    flex-direction: column;
    gap: 0.15rem;
  }

  header nav ul li a {
    padding: 0.85rem 1.25rem;
    font-size: 1.05rem;
    display: block;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
  }

  header nav ul li a::after {
    display: none;
  }

  header nav ul li a:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border);
  }

  .mobile-nav-overlay {
    display: block;
  }

  .search-form {
    flex: 1;
    max-width: 200px;
  }

  .search-form input[type="search"] {
    min-width: 0;
    width: 100%;
  }

  /* Layout */
  .main-content {
    padding: 1.25rem;
  }

  .main-content h1 {
    font-size: 1.75rem;
  }

  /* Hero */
  .hero-section {
    padding: 4rem 1.5rem;
    min-height: auto;
  }

  .hero-content h1 {
    font-size: 2.25rem;
    letter-spacing: -0.02em;
  }

  .hero-content p {
    font-size: 1rem;
  }

  .feature-cards {
    grid-template-columns: 1fr;
    max-width: 380px;
    gap: 1rem;
  }

  .feature-card {
    padding: 1.5rem 1.25rem;
  }

  /* Welcome */
  .welcome-container {
    padding: 1.75rem;
    margin: 1rem auto;
    border-radius: var(--radius-lg);
  }

  .welcome-container h1 {
    font-size: 1.5rem;
  }

  .user-info {
    padding: 1.25rem;
  }

  /* Category view */
  .category-view-container {
    flex-direction: column;
    padding: 1rem;
  }

  .category-index {
    width: 100%;
    position: static;
    max-height: none;
    margin-bottom: 1.5rem;
  }

  .category-content .video-grid {
    grid-template-columns: repeat(auto-fit, 140px);
    gap: 0.75rem;
  }

  /* Collection cards */
  .collection-card {
    width: 170px;
    height: 170px;
    padding: 1rem;
  }

  #category-grid-container {
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 1.25rem;
  }

  /* Category items */
  #categories-container .category-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  /* Major sections */
  .major-section-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .major-section-item {
    padding: 1.5rem;
    min-height: auto;
  }

  /* Footer */
  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-right {
    justify-content: center;
  }

  /* Buttons */
  .btn-primary, .btn-secondary {
    padding: 0.7rem 1.5rem;
    font-size: 0.875rem;
  }

  /* Feedback */
  .feedback-container {
    margin: 2rem 1rem;
    padding: 2rem;
  }

  /* Admin */
  .admin-container {
    margin: 1rem;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
  }

  /* News */
  .news-article {
    padding: 1.5rem;
  }
}

/* === 33. Responsive — 480px (Small phones) === */
@media (max-width: 480px) {
  header {
    padding: 0.6rem 0.85rem;
  }

  header .logo a {
    font-size: 1.2rem;
  }

  header::after {
    height: 1px;
  }

  .search-form {
    max-width: 150px;
  }

  .search-form input[type="search"] {
    min-width: 0;
    font-size: 0.8rem;
    padding: 0.4rem 0.5rem 0.4rem 1.85rem;
  }

  .hero-section {
    padding: 3rem 1.25rem;
  }

  .hero-content h1 {
    font-size: 1.85rem;
    line-height: 1.15;
  }

  .hero-content p {
    font-size: 0.95rem;
    margin-bottom: 2rem;
  }

  .hero-orb:nth-child(1) { width: 300px; height: 300px; }
  .hero-orb:nth-child(2) { width: 250px; height: 250px; }
  .hero-orb:nth-child(3) { width: 200px; height: 200px; }

  .main-content {
    padding: 1rem;
  }

  .main-content h1 {
    font-size: 1.45rem;
  }

  .welcome-container {
    padding: 1.25rem;
    margin: 0.75rem auto;
    border-radius: var(--radius-md);
  }

  .welcome-container h1 {
    font-size: 1.35rem;
  }

  .user-info {
    padding: 1rem;
    border-radius: var(--radius-md);
  }

  .subscription-status {
    padding: 1rem;
    border-radius: var(--radius-md);
  }

  .category-content .video-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
  }

  .video-item {
    padding: 0.4rem;
    border-radius: var(--radius-md);
  }

  .video-item h3, .video-item h4 {
    font-size: 0.8rem;
    margin-top: 0.4rem;
  }

  .collection-card {
    width: 140px;
    height: 140px;
    border-radius: var(--radius-lg);
  }

  .collection-card h2 {
    font-size: 0.95rem;
  }

  #category-grid-container {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
  }

  .error-container h1,
  .error-title {
    font-size: 3.5rem;
  }

  .error-container::before {
    width: 140px;
    height: 140px;
  }

  .news-article {
    padding: 1.25rem;
    border-radius: var(--radius-md);
  }

  .breadcrumb-container {
    padding: 0.7rem 1rem;
  }

  .breadcrumb-list {
    font-size: 0.8rem;
  }

  /* Touch targets */
  .btn-primary, .btn-secondary {
    min-height: 44px;
    padding: 0.65rem 1.25rem;
  }

  .category-item {
    padding: 1.1rem 1.25rem;
    min-height: 50px;
  }

  .feature-card {
    padding: 1.25rem 1rem;
  }

  footer {
    padding: 1.75rem 1.25rem;
  }
}