/* ============================================
   NEUROLEARN — GLOBAL DESIGN SYSTEM
   ============================================ */

:root {
  --bg-primary: #050714;
  --bg-secondary: #0a0f2e;
  --bg-card: rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.07);
  --border-hover: rgba(167,139,250,0.4);

  --purple: #a78bfa;
  --purple-dark: #7c3aed;
  --blue: #38bdf8;
  --pink: #f472b6;
  --green: #34d399;
  --orange: #fb923c;
  --yellow: #fbbf24;

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #475569;

  --gradient-main: linear-gradient(135deg, #a78bfa, #38bdf8);
  --gradient-hot: linear-gradient(135deg, #f472b6, #a78bfa);
  --gradient-green: linear-gradient(135deg, #34d399, #38bdf8);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --shadow-card: 0 4px 32px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(167,139,250,0.15);

  --font-main: 'Outfit', sans-serif;
  --font-code: 'JetBrains Mono', monospace;

  --nav-height: 72px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button { cursor: pointer; border: none; outline: none; font-family: var(--font-main); }

/* ============================================
   BACKGROUND ANIMATION
   ============================================ */
.bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 20% 15%, rgba(124,58,237,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 85%, rgba(56,189,248,0.1) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(244,114,182,0.06) 0%, transparent 60%),
    #050714;
}
.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  padding: 0 24px;
  background: rgba(5, 7, 20, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(5, 7, 20, 0.95);
  border-bottom-color: rgba(167,139,250,0.2);
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
}
.nav-container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon { display: flex; align-items: center; }
.logo-text {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.logo-accent {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}
.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.xp-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(251,191,36,0.1);
  border: 1px solid rgba(251,191,36,0.2);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--yellow);
  cursor: pointer;
  transition: var(--transition);
}
.xp-badge:hover { background: rgba(251,191,36,0.2); }
.xp-icon { font-size: 1rem; }

.btn-primary {
  padding: 10px 22px;
  background: var(--gradient-main);
  color: white;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(124,58,237,0.4);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  padding: calc(var(--nav-height) + 60px) 40px 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-content { flex: 1; max-width: 620px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(167,139,250,0.1);
  border: 1px solid rgba(167,139,250,0.25);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--purple);
  margin-bottom: 28px;
  animation: fadeInDown 0.6s ease both;
}
.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--purple);
  animation: pulse 2s infinite;
}

.hero-title {
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  animation: fadeInUp 0.7s 0.1s ease both;
}

.gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  animation: fadeInUp 0.7s 0.2s ease both;
}
.hero-subtitle em { color: var(--purple); font-style: normal; font-weight: 600; }

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 52px;
  animation: fadeInUp 0.7s 0.3s ease both;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: var(--gradient-main);
  color: white;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: var(--transition);
  box-shadow: 0 8px 32px rgba(124,58,237,0.4);
}
.btn-hero-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(124,58,237,0.5);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.btn-hero-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--purple);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  animation: fadeInUp 0.7s 0.4s ease both;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.stat-item > span:first-child {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-item > span:nth-child(2) {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* Hero Visual */
.hero-visual {
  flex: 1;
  max-width: 520px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 1s 0.5s ease both;
}

.neural-viz {
  width: 380px;
  height: 380px;
  position: relative;
}

.floating-cards {
  position: absolute;
  inset: 0;
}
.float-card {
  position: absolute;
  padding: 12px 18px;
  background: rgba(10, 15, 46, 0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  box-shadow: var(--shadow-card);
  white-space: nowrap;
}
.fc-icon { font-size: 1.3rem; }
.fc1 { top: 10%; left: -10%; animation: floatCard 4s ease-in-out infinite; }
.fc2 { top: 30%; right: -5%; animation: floatCard 4s 1s ease-in-out infinite; }
.fc3 { bottom: 25%; left: -8%; animation: floatCard 4s 2s ease-in-out infinite; }
.fc4 { bottom: 5%; right: 5%; animation: floatCard 4s 0.5s ease-in-out infinite; }

/* ============================================
   SECTIONS COMMON
   ============================================ */
section { 
  position: relative;
  z-index: 1;
  padding: 90px 40px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.section-tag {
  display: inline-flex;
  padding: 6px 16px;
  background: rgba(167,139,250,0.1);
  border: 1px solid rgba(167,139,250,0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--purple);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.section-title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  max-width: 700px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
}
.section-cta { text-align: center; margin-top: 48px; }

/* ============================================
   FEATURES GRID
   ============================================ */
.features-section { max-width: 1400px; margin: 0 auto; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  position: relative;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  cursor: pointer;
  overflow: hidden;
  display: block;
}
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top left, rgba(167,139,250,0.06) 0%, transparent 60%);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}
.feature-card:hover::before { opacity: 1; }

.feature-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--icon-color) 15%, transparent);
  border: 1px solid color-mix(in srgb, var(--icon-color) 30%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feature-icon { font-size: 1.6rem; }
.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}
.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.feature-tags span {
  padding: 3px 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.feature-arrow {
  color: var(--text-muted);
  font-size: 1.2rem;
  transition: var(--transition);
}
.feature-card:hover .feature-arrow {
  color: var(--purple);
  transform: translateX(4px);
}

.highlight-card {
  background: linear-gradient(135deg, rgba(244,114,182,0.08), rgba(167,139,250,0.08));
  border-color: rgba(244,114,182,0.2);
}
.new-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 4px 12px;
  background: var(--gradient-hot);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  color: white;
}

/* Progress Card */
.progress-card { cursor: default; }
.progress-mini { display: flex; flex-direction: column; gap: 12px; }
.prog-bar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.prog-bar-wrap > span:first-child { width: 80px; flex-shrink: 0; }
.prog-bar-wrap > span:last-child { width: 32px; text-align: right; flex-shrink: 0; }
.prog-bar {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 6px;
  overflow: hidden;
}
.prog-fill {
  height: 100%;
  background: var(--fill-color, var(--gradient-main));
  border-radius: 6px;
  transition: width 1.5s ease;
}

/* ============================================
   LEARNING PATHS
   ============================================ */
.paths-section { max-width: 1400px; margin: 0 auto; }
.paths-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.path-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.path-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}
.featured-path {
  background: linear-gradient(135deg, rgba(167,139,250,0.1), rgba(56,189,248,0.06));
  border-color: rgba(167,139,250,0.3);
  transform: scale(1.03);
}
.featured-path:hover { transform: scale(1.03) translateY(-4px); }
.path-best {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 12px;
  background: var(--gradient-main);
  color: white;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.path-level {
  display: inline-flex;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.path-level.beginner { background: rgba(52,211,153,0.15); color: var(--green); }
.path-level.intermediate { background: rgba(167,139,250,0.15); color: var(--purple); }
.path-level.advanced { background: rgba(251,146,60,0.15); color: var(--orange); }
.path-icon { font-size: 2.5rem; margin-bottom: 16px; display: block; }
.path-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 10px; }
.path-card p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 20px; }
.path-topics { list-style: none; margin-bottom: 24px; display: flex; flex-direction: column; gap: 8px; }
.path-topics li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
}
.path-topics li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--purple);
  font-weight: 700;
}
.path-meta {
  display: flex;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.path-btn {
  width: 100%;
  padding: 12px;
  background: rgba(167,139,250,0.1);
  border: 1px solid rgba(167,139,250,0.2);
  color: var(--purple);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.path-btn:hover {
  background: var(--gradient-main);
  color: white;
  border-color: transparent;
}

/* ============================================
   GAMES PREVIEW
   ============================================ */
.games-preview-section { max-width: 1400px; margin: 0 auto; }
.games-preview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.game-preview-card {
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  cursor: pointer;
  text-align: center;
}
.game-preview-card:hover {
  border-color: rgba(244,114,182,0.3);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(244,114,182,0.1);
}
.gp-icon { font-size: 2.5rem; margin-bottom: 14px; display: block; }
.game-preview-card h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.game-preview-card p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.5; }
.gp-tags span {
  padding: 4px 12px;
  background: rgba(244,114,182,0.1);
  border: 1px solid rgba(244,114,182,0.2);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--pink);
  font-weight: 600;
}

/* ============================================
   DASHBOARD SECTION
   ============================================ */
.dashboard-section {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.dash-content .section-header { align-items: flex-start; text-align: left; }
.dash-actions { margin-top: 32px; }
.btn-large { padding: 14px 32px; font-size: 1rem; }

.dash-widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-card), var(--shadow-glow);
}
.widget-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  font-weight: 700;
  font-size: 1rem;
}
.widget-tag {
  padding: 3px 10px;
  background: rgba(52,211,153,0.15);
  color: var(--green);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  animation: pulse 2s infinite;
}
.widget-stats { display: flex; gap: 24px; margin-bottom: 24px; align-items: center; }
.ws-circle {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: conic-gradient(var(--purple) calc(var(--pct)), rgba(255,255,255,0.06) 0);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
}
.ws-circle::after {
  content: '';
  position: absolute;
  inset: 10px;
  background: var(--bg-primary);
  border-radius: 50%;
}
.ws-circle span {
  position: relative;
  z-index: 1;
  font-size: 1rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.ws-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.ws-badges {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  flex: 1;
}
.badge-item {
  padding: 8px 10px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
  transition: var(--transition);
}
.badge-item.earned {
  background: rgba(167,139,250,0.1);
  border-color: rgba(167,139,250,0.25);
  color: var(--purple);
}
.streak-bar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.9rem;
  font-weight: 600;
}
.streak-days { display: flex; gap: 8px; }
.sd {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: var(--transition);
}
.sd.active {
  background: rgba(251,191,36,0.15);
  border-color: rgba(251,191,36,0.3);
  color: var(--yellow);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 60px 40px 24px;
  max-width: 1400px;
  margin: 0 auto;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 60px;
  margin-bottom: 48px;
}
.footer-brand { max-width: 320px; }
.footer-brand .logo-text { font-size: 1.5rem; font-weight: 800; display: block; margin-bottom: 12px; }
.footer-brand p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 16px; }
.footer-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.footer-badges span {
  padding: 4px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}
.footer-links { display: flex; gap: 60px; }
.fl-group { display: flex; flex-direction: column; gap: 12px; }
.fl-group h4 { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-primary); margin-bottom: 4px; }
.fl-group a { font-size: 0.9rem; color: var(--text-secondary); transition: color 0.2s; }
.fl-group a:hover { color: var(--purple); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes floatCard {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes bounceIn {
  0% { transform: scale(0.8); opacity: 0; }
  60% { transform: scale(1.05); }
  100% { transform: scale(1); opacity: 1; }
}
@keyframes slideInLeft { from { opacity: 0; transform: translateX(-30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }

/* ============================================
   PAGE TITLES (for inner pages)
   ============================================ */
.page-hero {
  padding: calc(var(--nav-height) + 50px) 40px 50px;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.page-hero-content {
  max-width: 700px;
}
.page-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(167,139,250,0.1);
  border: 1px solid rgba(167,139,250,0.2);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--purple);
  margin-bottom: 20px;
}
.page-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.page-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container { max-width: 1400px; margin: 0 auto; padding: 0 40px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; transition: var(--transition); }
.card:hover { border-color: var(--border-hover); background: var(--bg-card-hover); }
.tag { padding: 4px 12px; border-radius: 100px; font-size: 0.75rem; font-weight: 600; }
.tag-purple { background: rgba(167,139,250,0.15); color: var(--purple); }
.tag-blue { background: rgba(56,189,248,0.15); color: var(--blue); }
.tag-green { background: rgba(52,211,153,0.15); color: var(--green); }
.tag-pink { background: rgba(244,114,182,0.15); color: var(--pink); }
.tag-orange { background: rgba(251,146,60,0.15); color: var(--orange); }
.tag-yellow { background: rgba(251,191,36,0.15); color: var(--yellow); }

.glass {
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.08);
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: rgba(167,139,250,0.3); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: rgba(167,139,250,0.5); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1200px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .games-preview-grid { grid-template-columns: repeat(2, 1fr); }
  .paths-grid { grid-template-columns: 1fr; }
  .featured-path { transform: none; }
  .featured-path:hover { transform: translateY(-4px); }
}

@media (max-width: 900px) {
  .hero { flex-direction: column; text-align: center; padding-top: calc(var(--nav-height) + 40px); }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: none; }
  .dashboard-section { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: var(--nav-height); left: 0; right: 0; background: rgba(5,7,20,0.97); padding: 20px; border-bottom: 1px solid var(--border); }
  .hamburger { display: flex; }
  .footer-content { flex-direction: column; gap: 40px; }
  .footer-links { gap: 32px; }
  section { padding: 70px 20px; }
}

@media (max-width: 600px) {
  .features-grid, .games-preview-grid, .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero { padding: calc(var(--nav-height) + 20px) 20px 40px; }
  .hero-title { font-size: 2.4rem; }
  .navbar { padding: 0 16px; }
  .xp-badge { display: none; }
}

/* ============================================
   AUTHENTICATION MODAL  (Req 3.1)
   ============================================ */
.auth-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.25s ease;
}
.auth-modal {
  background: var(--bg-secondary);
  border: 1px solid rgba(167,139,250,0.2);
  border-radius: var(--radius-xl);
  padding: 40px;
  width: 100%;
  max-width: 440px;
  position: relative;
  animation: bounceIn 0.35s ease;
  box-shadow: 0 32px 80px rgba(0,0,0,0.6), 0 0 60px rgba(167,139,250,0.12);
}
.auth-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
}
.auth-close:hover { background: rgba(248,113,113,0.15); color: #f87171; border-color: rgba(248,113,113,0.3); }

.auth-logo { text-align: center; margin-bottom: 28px; }
.auth-logo .logo-text { font-size: 1.7rem; font-weight: 800; }
.auth-logo p { font-size: 0.88rem; color: var(--text-muted); margin-top: 8px; }

.auth-tabs {
  display: flex; gap: 4px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-sm);
  padding: 4px;
  margin-bottom: 28px;
}
.auth-tab {
  flex: 1;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
}
.auth-tab.active {
  background: var(--gradient-main);
  color: white;
  box-shadow: 0 4px 14px rgba(124,58,237,0.35);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.af-field { display: flex; flex-direction: column; gap: 7px; }
.af-field label { font-size: 0.83rem; font-weight: 600; color: var(--text-secondary); }
.af-field input {
  padding: 12px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.92rem;
  font-family: var(--font-main);
  outline: none;
  transition: var(--transition);
  width: 100%;
}
.af-field input:focus { border-color: var(--purple); box-shadow: 0 0 0 3px rgba(167,139,250,0.12); }
.af-field input::placeholder { color: var(--text-muted); }

.af-error {
  font-size: 0.82rem;
  color: #f87171;
  min-height: 16px;
  margin-top: -4px;
}
.af-submit {
  padding: 14px;
  background: var(--gradient-main);
  color: white;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
  margin-top: 4px;
}
.af-submit:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 8px 28px rgba(124,58,237,0.45); }

.af-switch { font-size: 0.82rem; color: var(--text-muted); text-align: center; }
.af-switch button {
  background: none; border: none;
  color: var(--purple); font-weight: 700;
  cursor: pointer; font-family: var(--font-main); font-size: 0.82rem;
}
.af-switch button:hover { text-decoration: underline; }

/* ============================================
   USER PROFILE IN NAVBAR
   ============================================ */
.user-nav-profile {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 5px;
  background: rgba(167,139,250,0.08);
  border: 1px solid rgba(167,139,250,0.2);
  border-radius: 100px;
  cursor: default;
}
.unp-avatar {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.82rem; font-weight: 800; color: white;
  flex-shrink: 0;
}
.unp-name {
  font-size: 0.85rem; font-weight: 600; color: var(--text-primary);
  max-width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.unp-logout {
  background: none; border: none;
  color: var(--text-muted); font-size: 0.9rem;
  cursor: pointer; padding: 3px 5px;
  border-radius: 6px; transition: var(--transition);
  font-family: var(--font-main);
}
.unp-logout:hover { color: #f87171; }

.btn-outline {
  padding: 9px 18px;
  background: transparent;
  border: 1px solid rgba(167,139,250,0.4);
  color: var(--purple);
  font-size: 0.85rem; font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-family: var(--font-main);
  cursor: pointer; white-space: nowrap;
}
.btn-outline:hover { background: rgba(167,139,250,0.1); border-color: var(--purple); }

/* ============================================
   LEADERBOARD SECTION  (Req 3.8)
   ============================================ */
.leaderboard-section { max-width: 1400px; margin: 0 auto; }
.lb-container {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 28px;
  align-items: start;
}

/* Leaderboard List */
.lb-list-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.lb-list-header {
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}
.lb-list-header h3 { font-size: 1rem; font-weight: 700; }
.lb-refresh {
  padding: 6px 16px;
  background: rgba(167,139,250,0.08);
  border: 1px solid rgba(167,139,250,0.2);
  border-radius: 100px;
  font-size: 0.78rem; font-weight: 600;
  color: var(--purple); cursor: pointer;
  transition: var(--transition); font-family: var(--font-main);
}
.lb-refresh:hover { background: rgba(167,139,250,0.18); }

#leaderboardList { display: flex; flex-direction: column; }
.lb-row {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.lb-row:last-child { border-bottom: none; }
.lb-row:hover { background: var(--bg-card-hover); }
.lb-row.lb-me {
  background: rgba(167,139,250,0.07);
  border-left: 3px solid var(--purple);
}
.lb-rank { font-size: 1.2rem; width: 36px; text-align: center; flex-shrink: 0; }
.lb-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; font-weight: 800; color: white;
  flex-shrink: 0;
}
.lb-info { flex: 1; min-width: 0; }
.lb-name {
  font-size: 0.92rem; font-weight: 700; margin-bottom: 2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.lb-streak { font-size: 0.75rem; color: var(--text-muted); }
.lb-xp { display: flex; flex-direction: column; align-items: flex-end; flex-shrink: 0; }
.lb-xp-val { font-size: 0.95rem; font-weight: 800; font-family: var(--font-code); color: var(--yellow); }
.lb-xp-label { font-size: 0.7rem; color: var(--text-muted); }
.lb-you-tag {
  display: inline-block;
  padding: 1px 6px;
  background: rgba(167,139,250,0.2);
  color: var(--purple);
  border-radius: 4px;
  font-size: 0.68rem; font-weight: 700;
  margin-left: 4px; vertical-align: middle;
}

/* Login Prompt */
.lb-login-prompt {
  padding: 20px 28px;
  text-align: center;
  border-top: 1px solid var(--border);
  font-size: 0.88rem; color: var(--text-secondary);
}
.lb-login-btn {
  margin-top: 10px;
  padding: 8px 20px;
  background: var(--gradient-main);
  color: white; font-size: 0.85rem; font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer; font-family: var(--font-main); border: none;
  transition: var(--transition);
}
.lb-login-btn:hover { opacity: 0.9; transform: translateY(-1px); }

/* ============================================
   BADGE SHOWCASE  (Req 3.8)
   ============================================ */
.badge-showcase {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
}
.badge-showcase h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }

.bs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 16px;
}
.bs-badge {
  padding: 14px 10px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex; flex-direction: column;
  align-items: center; gap: 5px;
  text-align: center;
  transition: var(--transition);
  position: relative; overflow: hidden;
  cursor: default;
}
.bs-badge.earned {
  background: rgba(167,139,250,0.08);
  border-color: rgba(167,139,250,0.25);
}
.bs-badge.earned:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(167,139,250,0.15);
}
.bs-badge.locked { opacity: 0.38; }
.bs-badge.earned::after {
  content: '✓';
  position: absolute; top: 5px; right: 7px;
  font-size: 0.65rem; color: var(--green); font-weight: 800;
}
.bs-icon { font-size: 1.7rem; }
.bs-name { font-size: 0.75rem; font-weight: 700; color: var(--text-primary); }
.bs-desc { font-size: 0.66rem; color: var(--text-muted); line-height: 1.3; }

.bs-next-badge {
  padding: 10px 14px;
  background: rgba(167,139,250,0.06);
  border: 1px solid rgba(167,139,250,0.15);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

@media (max-width: 1100px) {
  .lb-container { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .lb-row { padding: 12px 16px; gap: 10px; }
  .lb-rank { width: 28px; font-size: 1rem; }
  .bs-grid { grid-template-columns: repeat(2, 1fr); }
  .auth-modal { padding: 28px 20px; }
}