/* =========================================
   InfinityMock — Premium Design System
   ========================================= */

:root {
  --bg-primary: #f5f3ff;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.95);
  --bg-glass: rgba(255, 255, 255, 0.75);
  --border-glass: rgba(108, 92, 231, 0.1);
  --border-glass-hover: rgba(108, 92, 231, 0.2);
  --border-accent: rgba(108, 92, 231, 0.35);

  --text-primary: #1a1a2e;
  --text-secondary: #5a5a7a;
  --text-muted: #8888a0;

  --accent-1: #6c5ce7;
  --accent-2: #7c3aed;
  --accent-3: #ec4899;
  --accent-gradient: linear-gradient(135deg, #6c5ce7, #7c3aed, #a855f7);
  --accent-glow: rgba(108, 92, 231, 0.25);

  --success: #059669;
  --success-bg: rgba(5, 150, 105, 0.08);
  --danger: #dc2626;
  --danger-bg: rgba(220, 38, 38, 0.08);
  --warning: #d97706;
  --warning-bg: rgba(217, 119, 6, 0.08);
  --info: #2563eb;
  --info-bg: rgba(37, 99, 235, 0.08);

  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 50%;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(108,92,231,0.08), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 40px rgba(108,92,231,0.1), 0 4px 12px rgba(0,0,0,0.05);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

/* ===== ANIMATED MESH BACKGROUND ===== */
.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.mesh-gradient {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.5;
  animation: meshFloat 20s ease-in-out infinite;
}

.mesh-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.15) 0%, transparent 70%);
  top: -10%; left: -5%;
  animation-duration: 25s;
}

.mesh-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.12) 0%, transparent 70%);
  top: 40%; right: -10%;
  animation-duration: 20s;
  animation-delay: -5s;
}

.mesh-3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, transparent 70%);
  bottom: -5%; left: 30%;
  animation-duration: 22s;
  animation-delay: -10s;
}

@keyframes meshFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(50px, -30px) scale(1.1); }
  50% { transform: translate(-20px, 40px) scale(0.95); }
  75% { transform: translate(30px, 20px) scale(1.05); }
}

/* Particles */
.particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: rgba(108, 92, 231, 0.25);
  border-radius: 50%;
  animation: particleFloat linear infinite;
}

@keyframes particleFloat {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

/* ===== GLASS CARD ===== */
.glass-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: all var(--transition-base);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(108,92,231,0.12), transparent 50%, rgba(168,85,247,0.06));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.glass-card:hover {
  border-color: var(--border-glass-hover);
  box-shadow: var(--shadow-lg);
}

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 1.35rem;
}

.logo-icon {
  font-size: 1.8rem;
  font-weight: 900;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav { display: flex; gap: 4px; }

.nav-btn {
  background: none;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.nav-btn:hover { color: var(--text-primary); background: rgba(108,92,231,0.06); }
.nav-btn.active { color: var(--accent-1); background: rgba(108,92,231,0.1); border-color: rgba(108,92,231,0.2); font-weight: 600; }

/* Language Switcher */
.lang-switcher { position: relative; margin-left: 4px; }
.lang-btn {
  background: white;
  border: 1px solid var(--border-glass);
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}
.lang-btn:hover { border-color: var(--accent-1); color: var(--text-primary); }
.lang-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 6px;
  min-width: 150px;
  background: white;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: none;
  z-index: 200;
  padding: 4px;
  max-height: 320px;
  overflow-y: auto;
}
.lang-dropdown.open { display: block; animation: dropdownIn 0.2s ease; }
.lang-option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 7px 12px;
  border: none;
  background: none;
  font-family: var(--font-main);
  font-size: 0.82rem;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.lang-option:hover { background: var(--bg-primary); color: var(--text-primary); }
.lang-option.active { background: rgba(108,92,231,0.1); color: var(--accent-1); font-weight: 600; }

/* Header Right */
.header-right { display: flex; align-items: center; gap: 12px; }

.btn-login {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: white;
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.btn-login:hover { background: var(--bg-primary); border-color: var(--border-glass-hover); box-shadow: var(--shadow-md); }

.user-menu { display: flex; align-items: center; gap: 8px; }

.credit-badge {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  background: linear-gradient(135deg, rgba(108,92,231,0.15), rgba(168,85,247,0.1));
  border: 1px solid rgba(108,92,231,0.25);
  border-radius: var(--radius-xl);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-2);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.credit-badge:hover { background: linear-gradient(135deg, rgba(108,92,231,0.25), rgba(168,85,247,0.15)); }

.credit-icon { font-size: 0.9rem; }

.btn-buy-sm {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  border: none;
  border-radius: var(--radius-full);
  color: white;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-buy-sm:hover { transform: scale(1.1); box-shadow: 0 0 16px var(--accent-glow); }

.user-avatar-wrap {
  position: relative;
  cursor: pointer;
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  border: 2px solid var(--border-glass);
  object-fit: cover;
  transition: border-color var(--transition-fast);
}

.user-avatar:hover { border-color: var(--accent-1); }

.user-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  min-width: 220px;
  background: white;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  display: none;
  z-index: 200;
  animation: dropdownIn 0.2s ease;
}

.user-dropdown.open { display: block; }

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

.dropdown-user-info {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-glass);
  margin-bottom: 4px;
}

.dropdown-user-info strong { display: block; font-size: 0.9rem; }
.dropdown-user-info span { font-size: 0.75rem; color: var(--text-muted); }

.dropdown-credits {
  padding: 8px 12px;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-glass);
  margin-bottom: 4px;
}

.dropdown-credits strong { color: var(--accent-2); }

.dropdown-item {
  display: block;
  padding: 8px 12px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.dropdown-item:hover { background: var(--bg-primary); color: var(--text-primary); }
.dropdown-logout:hover { background: var(--danger-bg); color: var(--danger); }

/* ===== MAIN ===== */
.main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px;
  position: relative;
  z-index: 1;
}

.section { display: none; animation: fadeInUp 0.5s ease; }
.section.active { display: block; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== HERO ===== */
.hero { text-align: center; padding: 56px 0 40px; }

.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(108,92,231,0.08);
  border: 1px solid rgba(108,92,231,0.2);
  border-radius: var(--radius-xl);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-2);
  letter-spacing: 0.5px;
  margin-bottom: 24px;
  animation: badgePulse 4s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(108,92,231,0); }
  50% { box-shadow: 0 0 24px 4px rgba(108,92,231,0.12); }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

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

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  padding: 16px 32px;
  background: rgba(108,92,231,0.06);
  border: 1px solid rgba(108,92,231,0.15);
  border-radius: var(--radius-xl);
}

.hero-stat { text-align: center; }
.hero-stat-num { display: block; font-size: 1.5rem; font-weight: 900; background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-stat-label { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.hero-stat-divider { width: 1px; height: 32px; background: var(--border-glass); }

/* ===== LOGIN PROMPT ===== */
.login-prompt {
  max-width: 480px;
  margin: 0 auto 48px;
  padding: 40px;
  text-align: center;
}

.login-prompt-icon { font-size: 2.5rem; display: block; margin-bottom: 16px; }
.login-prompt h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 8px; }
.login-prompt p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 24px; }

.btn-google {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  background: white;
  color: #333;
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: var(--radius-md);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.btn-google:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.login-prompt-note { font-size: 0.78rem; color: var(--text-muted); margin-top: 16px; }

/* ===== SETUP CARD ===== */
.setup-card {
  max-width: 700px;
  margin: 0 auto 48px;
  padding: 32px;
}

.setup-header { text-align: center; margin-bottom: 28px; }
.setup-title { font-size: 1.3rem; font-weight: 700; margin-bottom: 4px; }
.setup-desc { color: var(--text-secondary); font-size: 0.9rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group { margin-bottom: 14px; }

.form-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-select {
  width: 100%;
  padding: 11px 14px;
  background: white;
  border: 1px solid rgba(108,92,231,0.15);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-base);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%238888a0' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  box-shadow: var(--shadow-sm);
}

.form-select:hover:not(:disabled) { border-color: var(--accent-1); }
.form-select:focus { outline: none; border-color: var(--accent-1); box-shadow: 0 0 0 3px rgba(108,92,231,0.1); }
.form-select:disabled { opacity: 0.35; cursor: not-allowed; }
.form-select option { background: white; color: var(--text-primary); }

.form-input, .form-textarea {
  width: 100%;
  padding: 11px 14px;
  background: white;
  border: 1px solid rgba(108,92,231,0.15);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.9rem;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.form-textarea { resize: vertical; min-height: 100px; }
.form-input:hover, .form-textarea:hover { border-color: var(--accent-1); }
.form-input:focus, .form-textarea:focus { outline: none; border-color: var(--accent-1); box-shadow: 0 0 0 3px rgba(108,92,231,0.1); }
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-muted); opacity: 0.7; }

.credit-info {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(108,92,231,0.06);
  border: 1px solid rgba(108,92,231,0.15);
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.credit-info-icon { font-size: 1rem; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
}

.btn:disabled { opacity: 0.35; cursor: not-allowed; }

.btn-primary { background: var(--accent-gradient); color: white; }
.btn-primary:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 0 32px var(--accent-glow); }

.btn-ghost { background: white; color: var(--text-secondary); border: 1px solid var(--border-glass); box-shadow: var(--shadow-sm); }
.btn-ghost:hover:not(:disabled) { background: var(--bg-primary); color: var(--text-primary); box-shadow: var(--shadow-md); }

.btn-glow { box-shadow: 0 0 20px rgba(108,92,231,0.15); }
.btn-glow:hover:not(:disabled) { box-shadow: 0 0 40px rgba(108,92,231,0.3); }

.btn-lg { width: 100%; padding: 14px; font-size: 1rem; }
.btn-block { width: 100%; }

.btn-submit {
  width: 100%;
  max-width: 400px;
  margin: 16px auto 0;
  display: flex;
  padding: 14px;
  font-size: 1rem;
  background: linear-gradient(135deg, #10b981, #059669);
}

.btn-submit:hover:not(:disabled) { box-shadow: 0 0 32px rgba(16,185,129,0.25); }

/* ===== CATEGORY GRID ===== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
  margin-bottom: 64px;
}

.category-card {
  padding: 24px;
  cursor: pointer;
  transition: all var(--transition-base);
  overflow: hidden;
}

.category-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-lg);
}

.category-card .cat-icon { font-size: 2rem; margin-bottom: 12px; display: block; }
.category-card .cat-name { font-weight: 700; font-size: 1rem; margin-bottom: 2px; }
.category-card .cat-count { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 8px; }
.category-card .cat-exams { display: flex; flex-wrap: wrap; gap: 4px; }
.cat-exam-tag {
  font-size: 0.65rem;
  padding: 1px 7px;
  background: rgba(108,92,231,0.08);
  border-radius: var(--radius-sm);
  color: var(--accent-2);
  font-weight: 500;
}

.cat-countries { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 8px; }
.cat-country-tag {
  font-size: 0.62rem;
  padding: 1px 6px;
  background: rgba(108,92,231,0.05);
  border: 1px solid rgba(108,92,231,0.1);
  border-radius: var(--radius-xl);
  color: var(--text-secondary);
  font-weight: 600;
}

/* ===== PRICING ===== */
.pricing-section { text-align: center; padding: 32px 0 64px; }

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 32px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.pricing-card {
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: all var(--transition-base);
}

.pricing-card.featured {
  border-color: var(--border-accent);
  box-shadow: 0 0 40px rgba(108,92,231,0.1);
  transform: scale(1.03);
}

.pricing-popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  background: var(--accent-gradient);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: var(--radius-xl);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.pricing-tag { font-size: 0.72rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }

.pricing-amount { font-size: 3rem; font-weight: 900; margin-bottom: 4px; }
.pricing-currency { font-size: 1.5rem; color: var(--text-secondary); }
.pricing-credits { font-size: 0.9rem; color: var(--accent-2); font-weight: 600; margin-bottom: 20px; }

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 24px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.pricing-features li { padding: 6px 0; }

/* ===== LOADING ===== */
.loading-container {
  max-width: 480px;
  margin: 15vh auto;
  padding: 56px 32px;
  text-align: center;
}

.loading-animation { position: relative; width: 100px; height: 100px; margin: 0 auto 32px; }

.pulse-ring {
  position: absolute;
  inset: 0;
  border: 2px solid var(--accent-1);
  border-radius: var(--radius-full);
  animation: pulseRing 2s ease-out infinite;
  opacity: 0;
}

.pulse-ring.delay-1 { animation-delay: 0.5s; }
.pulse-ring.delay-2 { animation-delay: 1s; }

@keyframes pulseRing {
  0% { transform: scale(0.5); opacity: 0.8; }
  100% { transform: scale(1.8); opacity: 0; }
}

.loading-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 2.5rem;
  animation: bounce 1.5s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -55%) scale(1.1); }
}

.loading-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.loading-subtitle { color: var(--text-secondary); font-size: 0.88rem; margin-bottom: 28px; }

.loading-bar { width: 100%; height: 3px; background: rgba(255,255,255,0.05); border-radius: 2px; overflow: hidden; }
.loading-bar-fill { height: 100%; width: 30%; background: var(--accent-gradient); border-radius: 2px; animation: loadSlide 2s ease-in-out infinite; }

@keyframes loadSlide {
  0% { transform: translateX(-100%); width: 30%; }
  50% { width: 60%; }
  100% { transform: translateX(400%); width: 30%; }
}

/* ===== QUIZ ===== */
.quiz-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 12px;
}

.quiz-meta { display: flex; gap: 6px; flex-wrap: wrap; }

.quiz-exam-badge, .quiz-subject-badge, .quiz-credits-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-xl);
}

.quiz-exam-badge { background: rgba(108,92,231,0.12); color: var(--accent-2); border: 1px solid rgba(108,92,231,0.2); }
.quiz-subject-badge { background: var(--info-bg); color: var(--info); border: 1px solid rgba(59,130,246,0.2); }
.quiz-credits-badge { background: rgba(108,92,231,0.08); color: var(--accent-2); border: 1px solid rgba(108,92,231,0.15); }

.quiz-timer {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
}

.quiz-progress { display: flex; align-items: center; gap: 12px; min-width: 160px; }
.progress-text { font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); white-space: nowrap; }
.progress-bar { flex: 1; height: 5px; background: rgba(255,255,255,0.05); border-radius: 3px; overflow: hidden; }
.progress-bar-fill { height: 100%; background: var(--accent-gradient); border-radius: 3px; transition: width var(--transition-slow); }

/* Question Nav */
.question-nav-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 12px;
  margin-bottom: 12px;
  justify-content: center;
}

.pill {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  background: white;
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.pill:hover { border-color: var(--accent-1); color: var(--text-primary); }
.pill.current { background: var(--accent-gradient); color: white; border-color: transparent; }
.pill.answered { background: rgba(108,92,231,0.12); border-color: rgba(108,92,231,0.25); color: var(--accent-2); }
.pill.flagged { border-color: var(--warning); color: var(--warning); }

/* Question Card */
.question-card { padding: 28px; margin-bottom: 12px; }

.question-number { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }

.question-difficulty-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: var(--radius-xl);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.question-difficulty-badge.easy { background: var(--success-bg); color: var(--success); }
.question-difficulty-badge.medium { background: var(--warning-bg); color: var(--warning); }
.question-difficulty-badge.hard { background: var(--danger-bg); color: var(--danger); }

.question-text { font-size: 1.05rem; line-height: 1.7; font-weight: 500; margin-bottom: 24px; }

.options-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }

.option-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: white;
}

.option-item:hover { background: rgba(108,92,231,0.04); border-color: rgba(108,92,231,0.2); box-shadow: var(--shadow-sm); }
.option-item.selected { background: rgba(108,92,231,0.06); border-color: rgba(108,92,231,0.3); box-shadow: 0 0 0 2px rgba(108,92,231,0.1); }
.option-radio { display: none; }

.option-marker {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.82rem;
  background: var(--bg-primary);
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.option-item.selected .option-marker { background: var(--accent-gradient); color: white; }
.option-text { font-size: 0.92rem; line-height: 1.5; }

.question-actions { display: flex; justify-content: space-between; gap: 8px; }
#btn-flag.flagged { background: var(--warning-bg); color: var(--warning); border-color: rgba(245,158,11,0.25); }

/* ===== RESULTS ===== */
.results-hero { text-align: center; padding: 36px 24px; margin-bottom: 28px; }

.results-emoji { font-size: 3rem; margin-bottom: 12px; animation: bounceIn 0.6s ease; }

@keyframes bounceIn {
  0% { transform: scale(0); }
  60% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.results-title { font-size: 1.6rem; font-weight: 800; margin-bottom: 24px; }

.score-circle { position: relative; width: 130px; height: 130px; margin: 0 auto 24px; }
.score-svg { transform: rotate(-90deg); width: 100%; height: 100%; }
.score-bg-circle { fill: none; stroke: rgba(255,255,255,0.05); stroke-width: 7; }
.score-fill-circle {
  fill: none;
  stroke: url(#scoreGradient);
  stroke-width: 7;
  stroke-linecap: round;
  stroke-dasharray: 326.73;
  stroke-dashoffset: 326.73;
  transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.score-value { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.score-number { font-size: 2.2rem; font-weight: 900; background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.score-percent { font-size: 1rem; font-weight: 600; color: var(--text-muted); }

.results-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; max-width: 480px; margin: 0 auto; }

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px;
  border-radius: var(--radius-md);
}

.stat-card.correct { background: var(--success-bg); }
.stat-card.wrong { background: var(--danger-bg); }
.stat-card.skipped { background: var(--warning-bg); }
.stat-card.time { background: var(--info-bg); }

.stat-value { font-size: 1.4rem; font-weight: 800; }
.stat-card.correct .stat-value { color: var(--success); }
.stat-card.wrong .stat-value { color: var(--danger); }
.stat-card.skipped .stat-value { color: var(--warning); }
.stat-card.time .stat-value { color: var(--info); font-family: var(--font-mono); font-size: 1.1rem; }
.stat-label { font-size: 0.7rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 2px; }

/* ===== ANALYTICS DASHBOARD ===== */
.analytics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 28px;
}

.analytics-wide { grid-column: 1 / -1; }

.analytics-card { padding: 20px 24px; }
.analytics-card-title { font-size: 0.9rem; font-weight: 700; margin-bottom: 16px; }

/* Grade */
.grade-display { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.grade-letter {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.grade-label { font-size: 0.9rem; color: var(--text-secondary); font-weight: 500; }

.grade-meter { position: relative; height: 8px; background: rgba(255,255,255,0.05); border-radius: 4px; overflow: hidden; margin-bottom: 6px; }
.grade-meter-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--accent-gradient);
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0;
}
.grade-meter-marks { display: flex; justify-content: space-between; font-size: 0.6rem; color: var(--text-muted); padding-top: 2px; }

/* Difficulty bars */
.diff-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.diff-label { font-size: 0.78rem; min-width: 60px; font-weight: 600; }
.diff-label.easy { color: var(--success); }
.diff-label.medium { color: var(--warning); }
.diff-label.hard { color: var(--danger); }
.diff-bar-wrap { flex: 1; height: 22px; background: rgba(108,92,231,0.04); border-radius: var(--radius-sm); overflow: hidden; position: relative; }
.diff-bar-correct { height: 100%; position: absolute; left: 0; top: 0; border-radius: var(--radius-sm) 0 0 var(--radius-sm); transition: width 1s ease; }
.diff-bar-wrong { height: 100%; position: absolute; top: 0; transition: width 1s ease; }
.diff-bar-correct.easy { background: rgba(16,185,129,0.4); }
.diff-bar-wrong.easy { background: rgba(16,185,129,0.12); }
.diff-bar-correct.medium { background: rgba(245,158,11,0.4); }
.diff-bar-wrong.medium { background: rgba(245,158,11,0.12); }
.diff-bar-correct.hard { background: rgba(239,68,68,0.4); }
.diff-bar-wrong.hard { background: rgba(239,68,68,0.12); }
.diff-score { font-size: 0.75rem; font-weight: 700; min-width: 40px; text-align: right; font-family: var(--font-mono); }

/* Time analysis */
.time-stats { display: flex; gap: 12px; justify-content: center; }
.time-stat-item { text-align: center; flex: 1; padding: 12px; background: rgba(108,92,231,0.04); border-radius: var(--radius-md); }
.time-stat-num { display: block; font-size: 1.4rem; font-weight: 800; color: var(--accent-2); font-family: var(--font-mono); }
.time-stat-label { display: block; font-size: 0.68rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 4px; }

/* Strengths */
.strength-item { display: flex; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--border-glass); }
.strength-item:last-child { border-bottom: none; }
.strength-icon { font-size: 1.1rem; }
.strength-text { flex: 1; font-size: 0.85rem; }
.strength-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-xl);
}
.strength-badge.good { background: var(--success-bg); color: var(--success); }
.strength-badge.weak { background: var(--danger-bg); color: var(--danger); }
.strength-badge.neutral { background: var(--warning-bg); color: var(--warning); }

/* Tips */
.tips-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tip-card {
  display: flex;
  gap: 10px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: white;
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-sm);
}
.tip-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 2px; }
.tip-content h5 { font-size: 0.82rem; font-weight: 700; margin-bottom: 2px; }
.tip-content p { font-size: 0.78rem; color: var(--text-secondary); line-height: 1.5; }

@media (max-width: 768px) {
  .analytics-grid { grid-template-columns: 1fr; }
  .tips-list { grid-template-columns: 1fr; }
  .time-stats { flex-direction: column; }
}

/* Review */
.review-section { margin-bottom: 24px; }
.review-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; }

.review-filters { display: flex; gap: 6px; margin-bottom: 20px; flex-wrap: wrap; }
.filter-btn {
  padding: 6px 14px;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--text-secondary);
  font-family: var(--font-main);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover { background: var(--bg-primary); }
.filter-btn.active { background: rgba(108,92,231,0.1); border-color: rgba(108,92,231,0.2); color: var(--accent-1); font-weight: 600; }

.review-list { display: flex; flex-direction: column; gap: 12px; }

.review-card { padding: 20px; border-radius: var(--radius-lg); background: white; border: 1px solid var(--border-glass); box-shadow: var(--shadow-sm); }
.review-card.correct { border-left: 3px solid var(--success); }
.review-card.wrong { border-left: 3px solid var(--danger); }
.review-card.skipped { border-left: 3px solid var(--warning); }

.review-q-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.review-q-num { font-size: 0.72rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.review-status { font-size: 0.72rem; font-weight: 600; padding: 2px 8px; border-radius: var(--radius-xl); }
.review-status.correct { background: var(--success-bg); color: var(--success); }
.review-status.wrong { background: var(--danger-bg); color: var(--danger); }
.review-status.skipped { background: var(--warning-bg); color: var(--warning); }

.review-q-text { font-size: 0.95rem; font-weight: 500; margin-bottom: 12px; line-height: 1.6; }

.review-options { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.review-option { display: flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: var(--radius-sm); font-size: 0.88rem; }
.review-option.is-correct { background: var(--success-bg); color: var(--success); font-weight: 600; }
.review-option.is-wrong { background: var(--danger-bg); color: var(--danger); }

.review-explanation {
  padding: 12px;
  background: rgba(37,99,235,0.04);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--info);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.review-explanation strong { color: var(--info); }
.results-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

/* ===== HISTORY ===== */
.section-header { text-align: center; margin-bottom: 28px; }
.section-title { font-size: 1.5rem; font-weight: 800; margin-bottom: 4px; }
.section-desc { color: var(--text-secondary); font-size: 0.9rem; }
.subsection-title { font-size: 1.1rem; font-weight: 700; margin: 24px 0 12px; }

.history-list, .transaction-list { display: flex; flex-direction: column; gap: 10px; }

.history-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: white;
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.history-card:hover { box-shadow: var(--shadow-md); }

.history-score-circle {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
}

.history-score-circle.good { background: var(--success-bg); color: var(--success); }
.history-score-circle.ok { background: var(--warning-bg); color: var(--warning); }
.history-score-circle.bad { background: var(--danger-bg); color: var(--danger); }

.history-info h4 { font-weight: 600; font-size: 0.95rem; }
.history-info p { font-size: 0.78rem; color: var(--text-muted); }
.history-date { font-size: 0.75rem; color: var(--text-muted); text-align: right; white-space: nowrap; }

.history-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.btn-retake { font-size: 0.75rem; padding: 4px 12px; white-space: nowrap; }

.history-score-circle.pending { background: rgba(108,92,231,0.04); color: var(--text-muted); border: 1px dashed rgba(108,92,231,0.2); }
.history-status-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 8px;
  background: var(--warning-bg);
  color: var(--warning);
  border-radius: var(--radius-xl);
  margin-left: 6px;
  vertical-align: middle;
}

/* ===== CREDITS ===== */
.credits-overview { padding: 32px; text-align: center; margin-bottom: 24px; }
.credits-balance { margin-bottom: 24px; }
.credits-balance-label { display: block; font-size: 0.82rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
.credits-balance-number { font-size: 3.5rem; font-weight: 900; background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.credits-balance-unit { display: block; font-size: 0.9rem; color: var(--text-secondary); }
.credits-buy-options { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.txn-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: white;
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-sm);
}

.txn-info { font-size: 0.88rem; }
.txn-info small { display: block; font-size: 0.72rem; color: var(--text-muted); }
.txn-amount { font-weight: 800; font-family: var(--font-mono); font-size: 0.9rem; }
.txn-amount.positive { color: var(--success); }
.txn-amount.negative { color: var(--danger); }

/* ===== STATS ===== */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.stats-card { padding: 20px; border-radius: var(--radius-lg); background: white; border: 1px solid var(--border-glass); box-shadow: var(--shadow-sm); }
.stats-card h4 { font-weight: 700; margin-bottom: 14px; font-size: 0.95rem; }

.stats-bar-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.stats-bar-label { font-size: 0.75rem; color: var(--text-secondary); min-width: 120px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stats-bar-track { flex: 1; height: 5px; background: rgba(255,255,255,0.05); border-radius: 3px; overflow: hidden; }
.stats-bar-fill { height: 100%; border-radius: 3px; background: var(--accent-gradient); transition: width var(--transition-slow); }
.stats-bar-count { font-size: 0.68rem; color: var(--text-muted); font-family: var(--font-mono); min-width: 48px; text-align: right; }

.stats-total-card { padding: 28px; text-align: center; border-radius: var(--radius-lg); background: white; border: 1px solid var(--border-glass); box-shadow: var(--shadow-sm); }
.stats-total-number { font-size: 2.5rem; font-weight: 900; background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stats-total-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }

/* ===== EMPTY / MODAL ===== */
.empty-state { text-align: center; padding: 48px; color: var(--text-muted); }
.empty-icon { font-size: 2.5rem; display: block; margin-bottom: 12px; }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.3);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  backdrop-filter: blur(4px);
}

.modal-overlay.active { display: flex; }

.modal { max-width: 400px; width: 90%; padding: 28px; text-align: center; }
.modal-icon { font-size: 2.5rem; margin-bottom: 12px; }
.modal-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.modal-text { color: var(--text-secondary); font-size: 0.88rem; margin-bottom: 24px; }
.modal-actions { display: flex; gap: 8px; justify-content: center; }
/* ===== CONTACT US ===== */
#section-contact { max-width: 1000px; margin: 0 auto; }
.contact-grid { display: grid; grid-template-columns: 3fr 2fr; gap: 24px; margin-top: 24px; }

.contact-form-card { padding: 32px; flex: 1; }
.contact-info-card { padding: 32px; display: flex; flex-direction: column; }
.contact-info-card h4 { font-size: 1.2rem; font-weight: 700; margin-bottom: 24px; }

.contact-info-items { display: flex; flex-direction: column; gap: 24px; flex: 1; }
.contact-info-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-info-icon { font-size: 1.5rem; background: var(--bg-primary); width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-full); border: 1px solid var(--border-glass); box-shadow: var(--shadow-sm); }
.contact-info-item strong { display: block; font-size: 0.9rem; color: var(--text-primary); margin-bottom: 4px; }
.contact-info-item span, .contact-info-item a { font-size: 0.85rem; color: var(--text-secondary); text-decoration: none; }
.contact-info-item a:hover { color: var(--accent-1); text-decoration: underline; }

.contact-cta { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border-glass); font-size: 0.9rem; color: var(--accent-2); font-weight: 500; text-align: center; }

.contact-success { text-align: center; padding: 48px 0; animation: dropdownIn 0.3s ease; }
.contact-success-icon { font-size: 3rem; margin-bottom: 16px; display: block; }
.contact-success h3 { font-size: 1.5rem; font-weight: 800; color: var(--text-primary); margin-bottom: 8px; }
.contact-success p { color: var(--text-secondary); }

/* ===== LIFETIME DEAL BANNER ===== */
.ltd-banner {
  margin: 24px 0 32px;
  background: linear-gradient(135deg, #6c5ce7, #7c3aed, #ec4899, #f97316);
  background-size: 300% 300%;
  animation: ltdGradient 4s ease infinite;
  border-radius: var(--radius-lg);
  padding: 3px;
}
@keyframes ltdGradient {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.ltd-banner-inner {
  background: rgba(26, 26, 46, 0.92);
  border-radius: calc(var(--radius-lg) - 2px);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.ltd-fire { font-size: 1.4rem; animation: ltdPulse 1s ease infinite; }
@keyframes ltdPulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.2); } }
.ltd-banner-text {
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.ltd-countdown {
  display: flex;
  align-items: center;
  gap: 6px;
}
.ltd-timer-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(108, 92, 231, 0.3);
  border: 1px solid rgba(168, 85, 247, 0.4);
  border-radius: 8px;
  padding: 6px 10px;
  min-width: 52px;
}
.ltd-timer-unit span {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-mono);
  line-height: 1;
}
.ltd-timer-unit small {
  font-size: 0.6rem;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 2px;
}
.ltd-timer-sep {
  color: rgba(255,255,255,0.5);
  font-size: 1.2rem;
  font-weight: 700;
  animation: ltdBlink 1s step-end infinite;
}
@keyframes ltdBlink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ===== LIFETIME FEATURED CARD ===== */
.pricing-card.lifetime-featured {
  border: 2px solid transparent;
  background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
              linear-gradient(135deg, #6c5ce7, #ec4899, #f97316) border-box;
  transform: scale(1.06);
  position: relative;
  box-shadow: 0 8px 40px rgba(108, 92, 231, 0.2), 0 0 60px rgba(236, 72, 153, 0.08);
}
.pricing-card.lifetime-featured .pricing-popular {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #f97316, #ec4899);
  color: #fff;
  padding: 6px 20px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 1px;
  white-space: nowrap;
  box-shadow: 0 4px 15px rgba(249, 115, 22, 0.4);
  animation: ltdBadgePulse 2s ease infinite;
}
@keyframes ltdBadgePulse {
  0%, 100% { box-shadow: 0 4px 15px rgba(249, 115, 22, 0.4); }
  50% { box-shadow: 0 4px 25px rgba(236, 72, 153, 0.6); }
}
.pricing-amount-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.pricing-original {
  font-size: 1rem;
  color: var(--text-muted);
  text-decoration: line-through;
  opacity: 0.7;
}
.pricing-amount.ltd-price {
  font-size: 3.2rem;
  font-weight: 900;
  background: linear-gradient(135deg, #6c5ce7, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.pricing-once {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}


/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .quiz-header { flex-direction: column; align-items: stretch; }
  .quiz-meta, .quiz-timer { justify-content: center; }
  .results-stats { grid-template-columns: repeat(2, 1fr); }
  .history-card { grid-template-columns: auto 1fr; }
  .history-date { grid-column: 1 / -1; text-align: left; }
  .pricing-cards { grid-template-columns: 1fr; }
  .pricing-card.featured, .pricing-card.lifetime-featured { transform: none; }
  .hero-stats { flex-direction: column; gap: 12px; padding: 16px; }
  .hero-stat-divider { width: 32px; height: 1px; }
  .nav { display: none; }
  .ltd-banner-inner { flex-direction: column; text-align: center; gap: 10px; padding: 14px; }
  .ltd-banner-text { font-size: 0.8rem; }
  .ltd-timer-unit { min-width: 44px; padding: 4px 8px; }
  .ltd-timer-unit span { font-size: 1rem; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.7rem; }
  .setup-card { padding: 20px; }
  .question-card { padding: 20px 14px; }
  .pill { width: 28px; height: 28px; font-size: 0.7rem; }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(108,92,231,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(108,92,231,0.3); }