/*
Theme Name: Math Speed
Theme URI: https://mathspeed.info
Author: Binoy'sLab
Author URI: https://mathspeed.info
Description: A high-performance, dark-mode advertising theme for the Math Speed iOS & watchOS mental math application with advanced interactive animations.
Version: 3.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: mathspeed
Tags: dark-mode, educational, responsive-layout, landing-page, one-column, custom-menu, glassmorphism, animations, interactive
*/

/* ==========================================================================
   Math Speed Premium Design Tokens & Color Palette
   ========================================================================== */
/* Unified SVG Icon System for Cross-Platform Consistency */
svg.icon-svg,
.icon-svg {
  display: inline-block !important;
  vertical-align: -0.15em !important;
  width: 1.15em !important;
  height: 1.15em !important;
  max-width: 1.5em !important;
  max-height: 1.5em !important;
  stroke-width: 2;
  stroke: currentColor;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0 !important;
  transition: transform 0.25s ease, stroke 0.25s ease;
}

/* Strict size caps for Buttons, Hero Badges, Pills, Nav Links, and Inline Spans */
.btn svg.icon-svg,
.badge-item svg.icon-svg,
.hero-pill svg.icon-svg,
.showcase-tab-btn svg.icon-svg,
.track-stats-btn svg.icon-svg,
.theme-toggle-btn svg.icon-svg,
span > svg.icon-svg {
  width: 18px !important;
  height: 18px !important;
  min-width: 18px !important;
  max-width: 18px !important;
  min-height: 18px !important;
  max-height: 18px !important;
  margin-right: 6px !important;
  vertical-align: -0.15em !important;
  display: inline-block !important;
  flex-shrink: 0 !important;
}

/* Heading & Title SVG Icons */
h1 svg.icon-svg, h2 svg.icon-svg, h3 svg.icon-svg, h4 svg.icon-svg,
.details-card h3 svg.icon-svg, .event-card h3 svg.icon-svg {
  margin-right: 0.35em !important;
  vertical-align: -0.15em !important;
  color: var(--brand-primary);
  width: 24px !important;
  height: 24px !important;
  min-width: 24px !important;
  max-width: 24px !important;
  min-height: 24px !important;
  max-height: 24px !important;
  display: inline-block !important;
  flex-shrink: 0 !important;
}

/* Feature Icon Container Fixes */
.feature-icon svg.icon-svg {
  width: 32px !important;
  height: 32px !important;
  min-width: 32px !important;
  max-width: 32px !important;
  min-height: 32px !important;
  max-height: 32px !important;
  stroke-width: 2;
  color: var(--brand-primary);
  display: block !important;
  margin: 0 auto !important;
  flex-shrink: 0 !important;
}

/* Badge Icon Container Fixes */
.badge-icon svg.icon-svg {
  width: 30px !important;
  height: 30px !important;
  min-width: 30px !important;
  max-width: 30px !important;
  min-height: 30px !important;
  max-height: 30px !important;
  stroke-width: 2;
  color: var(--brand-primary);
  display: block !important;
  margin: 0 auto !important;
  flex-shrink: 0 !important;
}

/* Inline Badges & Tags */
.inline-badge svg.icon-svg, .section-tag svg.icon-svg, .spec-badge svg.icon-svg, .technique-tag svg.icon-svg {
  margin-right: 0.35em !important;
  vertical-align: -0.15em !important;
  width: 18px !important;
  height: 18px !important;
  min-width: 18px !important;
  max-width: 18px !important;
  min-height: 18px !important;
  max-height: 18px !important;
  flex-shrink: 0 !important;
}

.pricing-feature-check svg.icon-svg,
.technique-step-icon svg.icon-svg {
  width: 18px !important;
  height: 18px !important;
  min-width: 18px !important;
  max-width: 18px !important;
  min-height: 18px !important;
  max-height: 18px !important;
  vertical-align: -0.15em !important;
  flex-shrink: 0 !important;
}

.seo-guide-icon-badge svg.icon-svg {
  width: 24px !important;
  height: 24px !important;
  min-width: 24px !important;
  max-width: 24px !important;
  min-height: 24px !important;
  max-height: 24px !important;
  stroke-width: 2;
  color: currentColor;
  flex-shrink: 0 !important;
}

.device-caption svg.icon-svg {
  margin-left: 0.3em !important;
  vertical-align: -0.12em !important;
  width: 14px !important;
  height: 14px !important;
  min-width: 14px !important;
  max-width: 14px !important;
  min-height: 14px !important;
  max-height: 14px !important;
  flex-shrink: 0 !important;
}

/* Semantic Color Classes for SVG Icons */
.icon-check, .icon-success {
  color: var(--semantic-success, #34D399) !important;
}

.icon-cross, .icon-error {
  color: var(--semantic-error, #F87171) !important;
}

.icon-warning {
  color: var(--semantic-warning, #FBBF24) !important;
}

:root {
  --surface-background: #0B0D12;
  --surface-card: rgba(22, 26, 36, 0.75);
  --surface-card-hover: rgba(30, 35, 48, 0.9);
  --surface-elevated: rgba(38, 44, 61, 0.9);
  
  --border-subtle: rgba(255, 255, 255, 0.12);
  --border-accent: rgba(129, 140, 248, 0.5);
  --border-glow: rgba(99, 102, 241, 0.6);

  --text-primary: #F9FAFB;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;

  --brand-primary: #818CF8;
  --brand-primary-hover: #6366F1;
  --brand-gradient: linear-gradient(135deg, #818CF8 0%, #C084FC 50%, #34D399 100%);
  --brand-glow: rgba(129, 140, 248, 0.35);

  --semantic-success: #34D399;
  --semantic-error: #F87171;
  --semantic-warning: #FBBF24;

  --font-header: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 10px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 48px;
  --space-xxxl: 80px;

  --max-width: 1240px;
  --header-height: 80px;
  --header-bg: rgba(11, 13, 18, 0.88);
  --drawer-bg: rgba(11, 13, 20, 0.98);
}

/* Light Mode Design System Override Tokens */
[data-theme="light"] {
  --surface-background: #F4F6FB;
  --surface-card: #FFFFFF;
  --surface-card-hover: #FFFFFF;
  --surface-elevated: #E2E8F0;
  
  --border-subtle: rgba(15, 23, 42, 0.12);
  --border-accent: rgba(79, 70, 229, 0.35);
  --border-glow: rgba(79, 70, 229, 0.2);

  --text-primary: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;

  --brand-primary: #4F46E5;
  --brand-primary-hover: #4338CA;
  --brand-gradient: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #059669 100%);
  --brand-glow: rgba(79, 70, 229, 0.25);

  --header-bg: rgba(244, 246, 251, 0.92);
  --drawer-bg: #FFFFFF;
  --footer-bg: #E2E8F0;
  --table-bg: #FFFFFF;
}

/* Universal Header & Drawer Theme Toggle Button */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  height: 44px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
  font-family: var(--font-header);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  user-select: none;
  white-space: nowrap;
}

.theme-toggle-btn:hover {
  background: rgba(129, 140, 248, 0.2);
  border-color: var(--brand-primary);
  transform: translateY(-1px);
}

.theme-toggle-btn:active {
  transform: scale(0.96);
}

[data-theme="light"] .theme-toggle-btn {
  background: rgba(15, 23, 42, 0.06);
  border: 1px solid rgba(15, 23, 42, 0.15);
  color: #0F172A;
}

[data-theme="light"] .theme-toggle-btn:hover {
  background: rgba(79, 70, 229, 0.12);
  border-color: #4F46E5;
}

/* Light Mode Overrides for Specific Complex Components */
[data-theme="light"] body {
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(79, 70, 229, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 60%, rgba(124, 58, 237, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(5, 150, 105, 0.06) 0%, transparent 55%);
}

[data-theme="light"] .site-header {
  background: var(--header-bg);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .mobile-nav-drawer {
  background: var(--drawer-bg);
  border-bottom: 1px solid rgba(15, 23, 42, 0.1);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .site-footer {
  background: #E2E8F0;
  border-top: 1px solid rgba(15, 23, 42, 0.1);
}

/* Light Mode Navigation Links */
[data-theme="light"] .nav-link {
  color: #475569;
}

[data-theme="light"] .nav-link:hover,
[data-theme="light"] .nav-link.active {
  color: #4F46E5;
}

[data-theme="light"] .mobile-nav-drawer .nav-link {
  color: #334155;
}

[data-theme="light"] .mobile-nav-drawer .nav-link:hover,
[data-theme="light"] .mobile-nav-drawer .nav-link.active {
  color: #4F46E5;
  background: rgba(79, 70, 229, 0.08);
  border-left-color: #4F46E5;
}

/* Light Mode Main Titles (Hero, Section, Analytics) */
[data-theme="light"] .hero-title,
[data-theme="light"] .section-title,
[data-theme="light"] .analytics-hero-title,
[data-theme="light"] .feature-title,
[data-theme="light"] .detail-title,
[data-theme="light"] .calc-header h3,
[data-theme="light"] .lightbox-caption,
[data-theme="light"] h1,
[data-theme="light"] h2,
[data-theme="light"] h3,
[data-theme="light"] h4 {
  background: linear-gradient(180deg, #0F172A 0%, #334155 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #0F172A;
}

[data-theme="light"] .hero-title .gradient-text,
[data-theme="light"] .section-title .gradient-text,
[data-theme="light"] .analytics-hero-title .gradient-text {
  background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 40%, #059669 80%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Light Mode Badges & Pills */
[data-theme="light"] .hero-pill {
  background: #FFFFFF;
  border: 1px solid rgba(79, 70, 229, 0.25);
  color: #334155;
  box-shadow: 0 4px 18px rgba(79, 70, 229, 0.12);
}

[data-theme="light"] .hero-pill span {
  color: #4F46E5;
}

[data-theme="light"] .badge-item {
  background: #FFFFFF;
  border: 1px solid rgba(15, 23, 42, 0.12);
  color: #334155;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .badge-group {
  color: #64748B;
}

/* Light Mode Secondary Buttons */
[data-theme="light"] .btn-secondary {
  background: #FFFFFF;
  border: 1px solid rgba(15, 23, 42, 0.15);
  color: #0F172A;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .btn-secondary:hover {
  background: rgba(79, 70, 229, 0.06);
  border-color: #4F46E5;
  color: #4F46E5;
}

/* Light Mode Showcase Pill Tabs */
[data-theme="light"] .showcase-tab-btn {
  background: #FFFFFF;
  border: 1px solid rgba(15, 23, 42, 0.12);
  color: #475569;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .showcase-tab-btn.active,
[data-theme="light"] .showcase-tab-btn:hover {
  background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.35);
}

/* Light Mode Cards System */
[data-theme="light"] .feature-card,
[data-theme="light"] .detail-card,
[data-theme="light"] .calc-widget-card,
[data-theme="light"] .privacy-card,
[data-theme="light"] .support-card,
[data-theme="light"] .demo-card,
[data-theme="light"] .analytics-card,
[data-theme="light"] .seo-guide-card,
[data-theme="light"] .faq-item {
  background: #FFFFFF !important;
  border: 1px solid rgba(15, 23, 42, 0.1) !important;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05) !important;
}

[data-theme="light"] .feature-card:hover,
[data-theme="light"] .detail-card:hover,
[data-theme="light"] .calc-widget-card:hover,
[data-theme="light"] .privacy-card:hover,
[data-theme="light"] .support-card:hover,
[data-theme="light"] .seo-guide-card:hover,
[data-theme="light"] .demo-card:hover {
  border-color: rgba(79, 70, 229, 0.35) !important;
  box-shadow: 0 18px 40px rgba(79, 70, 229, 0.14) !important;
}

/* Light Mode Pricing Section & Cards System */
[data-theme="light"] .pricing-card {
  background: #FFFFFF;
  border: 1px solid rgba(15, 23, 42, 0.12);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}

[data-theme="light"] .pricing-card:hover {
  border-color: rgba(79, 70, 229, 0.4);
  box-shadow: 0 20px 45px rgba(79, 70, 229, 0.15);
}

[data-theme="light"] .pricing-card h3 {
  color: #0F172A;
}

[data-theme="light"] .pricing-card .pricing-price {
  color: #0F172A;
}

[data-theme="light"] .pricing-card .pricing-period {
  color: #475569;
}

[data-theme="light"] .pricing-card .pricing-feature {
  color: #334155;
}

[data-theme="light"] .pricing-card .pricing-feature strong {
  color: #0F172A;
}

[data-theme="light"] .pricing-card .pricing-feature-check {
  color: #059669;
}

/* Featured / Ultimate Access Dark Navy Card in Light Mode */
[data-theme="light"] .pricing-card.popular {
  background: linear-gradient(145deg, #0F172A 0%, #1E1B4B 100%) !important;
  border: 1px solid rgba(129, 140, 248, 0.4) !important;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25) !important;
  color: #FFFFFF !important;
}

[data-theme="light"] .pricing-card.popular h3,
[data-theme="light"] .pricing-card.popular div,
[data-theme="light"] .pricing-card.popular span,
[data-theme="light"] .pricing-card.popular strong,
[data-theme="light"] .pricing-card.popular li,
[data-theme="light"] .pricing-card.popular .pricing-price {
  color: #FFFFFF !important;
  -webkit-text-fill-color: #FFFFFF !important;
}

[data-theme="light"] .pricing-card.popular .pricing-period,
[data-theme="light"] .pricing-card.popular .pricing-features li span,
[data-theme="light"] .pricing-card.popular div[style*="text-secondary"] {
  color: rgba(241, 245, 249, 0.88) !important;
  -webkit-text-fill-color: rgba(241, 245, 249, 0.88) !important;
}

[data-theme="light"] .pricing-card.popular .pricing-feature-check {
  color: #34D399 !important;
  -webkit-text-fill-color: #34D399 !important;
}

[data-theme="light"] .pricing-card.popular .btn-primary {
  background: linear-gradient(135deg, #6366F1 0%, #818CF8 50%, #C084FC 100%) !important;
  color: #FFFFFF !important;
  box-shadow: 0 6px 25px rgba(129, 140, 248, 0.6) !important;
}

[data-theme="light"] .pricing-card.popular .pricing-popular-badge {
  background: linear-gradient(135deg, #059669 0%, #10B981 100%) !important;
  color: #FFFFFF !important;
  border: none !important;
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.4) !important;
}

[data-theme="light"] .feature-icon,
[data-theme="light"] .detail-icon {
  background: rgba(79, 70, 229, 0.08);
  border: 1px solid rgba(79, 70, 229, 0.2);
  color: #4F46E5;
}

[data-theme="light"] .feature-text,
[data-theme="light"] .detail-text,
[data-theme="light"] .hero-subtitle,
[data-theme="light"] .section-desc,
[data-theme="light"] .faq-answer,
[data-theme="light"] .calc-slider-label,
[data-theme="light"] .calc-metric-lbl {
  color: #334155;
}

/* Light Mode Benchmark & Metrics Section */
[data-theme="light"] .metrics-section {
  background: #FFFFFF;
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

[data-theme="light"] .metric-number {
  background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #059669 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .metric-label {
  color: #475569;
}

[data-theme="light"] .calc-metric-box {
  background: #F8FAFC;
  border: 1px solid rgba(15, 23, 42, 0.1);
}

/* Light Mode Game & Interactive Quiz Overrides */
[data-theme="light"] .equation-box {
  background: #FFFFFF;
  border: 1px solid rgba(79, 70, 229, 0.25);
  box-shadow: 0 8px 30px rgba(79, 70, 229, 0.08);
  color: #0F172A;
  text-shadow: none;
}

[data-theme="light"] .option-btn {
  background: #FFFFFF;
  border: 1px solid rgba(15, 23, 42, 0.15);
  color: #0F172A;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .option-btn:hover {
  background: rgba(79, 70, 229, 0.08);
  border-color: #4F46E5;
  color: #4F46E5;
}

/* Light Mode Telemetry Table */
[data-theme="light"] .telemetry-table-container {
  background: #FFFFFF;
  border-color: rgba(79, 70, 229, 0.2);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .telemetry-table th {
  background: rgba(15, 23, 42, 0.04);
  color: #475569;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .telemetry-table td {
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  color: #0F172A;
}

[data-theme="light"] .telemetry-table tbody tr:hover {
  background: rgba(79, 70, 229, 0.04);
}

/* Light Mode Analytics Drawers & Analytics Dashboard Panels */
[data-theme="light"] .analytics-drawer {
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(79, 70, 229, 0.2);
  color: #0F172A;
  box-shadow: 0 -20px 40px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .analytics-card {
  background: #F8FAFC;
  border-color: rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .analytics-kpi-card,
[data-theme="light"] .analytics-panel {
  background: #FFFFFF !important;
  border: 1px solid rgba(15, 23, 42, 0.1) !important;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05) !important;
}

[data-theme="light"] .analytics-kpi-card:hover,
[data-theme="light"] .analytics-panel:hover {
  border-color: rgba(79, 70, 229, 0.35) !important;
  box-shadow: 0 18px 40px rgba(79, 70, 229, 0.14) !important;
}

[data-theme="light"] .analytics-kpi-num,
[data-theme="light"] .analytics-panel-title {
  color: #0F172A !important;
  border-bottom-color: rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .analytics-kpi-label,
[data-theme="light"] .bar-metric-header,
[data-theme="light"] .analytics-hero-desc {
  color: #334155 !important;
}

[data-theme="light"] .analytics-kpi-icon {
  background: rgba(79, 70, 229, 0.08);
  border-color: rgba(79, 70, 229, 0.2);
  color: #4F46E5;
}

[data-theme="light"] .analytics-kpi-trend {
  background: rgba(5, 150, 105, 0.1);
  color: #047857;
  border-color: rgba(5, 150, 105, 0.25);
}

[data-theme="light"] .bar-metric-track {
  background: rgba(15, 23, 42, 0.06);
  border-color: rgba(15, 23, 42, 0.12);
}

[data-theme="light"] .analytics-hero .inline-badge {
  background: rgba(5, 150, 105, 0.1) !important;
  color: #047857 !important;
  border-color: rgba(5, 150, 105, 0.25) !important;
}

[data-theme="light"] input,
[data-theme="light"] select,
[data-theme="light"] textarea,
[data-theme="light"] .form-control {
  background: #FFFFFF;
  border: 1px solid rgba(15, 23, 42, 0.2);
  color: #0F172A;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--surface-background);
  color: var(--text-primary);
}

body {
  font-family: var(--font-body);
  background-color: var(--surface-background);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 85% 60%, rgba(192, 132, 252, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(52, 211, 153, 0.1) 0%, transparent 55%);
  background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6, .font-heading {
  font-family: var(--font-header);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.18;
}

a {
  color: var(--brand-primary);
  text-decoration: none;
  transition: all 0.25s ease;
}

a:hover {
  color: var(--brand-primary-hover);
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Gradient Text Effect with Shimmer Animation */
.gradient-text {
  background: linear-gradient(135deg, #818CF8 0%, #C084FC 40%, #34D399 80%, #818CF8 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  animation: textGradientShift 6s linear infinite;
}

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

/* ==========================================================================
   Advanced Animations & Keyframes System
   ========================================================================== */

@keyframes floatSymbol1 {
  0% { transform: translateY(0px) rotate(0deg) scale(1); opacity: 0.35; }
  50% { transform: translateY(-28px) rotate(14deg) scale(1.15); opacity: 0.85; filter: drop-shadow(0 0 16px rgba(129, 140, 248, 0.8)); }
  100% { transform: translateY(0px) rotate(0deg) scale(1); opacity: 0.35; }
}

@keyframes floatSymbol2 {
  0% { transform: translateY(0px) rotate(0deg) scale(1); opacity: 0.35; }
  50% { transform: translateY(24px) rotate(-12deg) scale(1.1); opacity: 0.8; filter: drop-shadow(0 0 16px rgba(192, 132, 252, 0.8)); }
  100% { transform: translateY(0px) rotate(0deg) scale(1); opacity: 0.35; }
}

@keyframes pulseGlow {
  0% { transform: translateX(-50%) scale(0.9); opacity: 0.4; }
  50% { transform: translateX(-50%) scale(1.2); opacity: 0.85; }
  100% { transform: translateX(-50%) scale(0.9); opacity: 0.4; }
}

@keyframes shineSweep {
  0% { left: -100%; }
  100% { left: 200%; }
}

@keyframes elasticShake {
  0%, 100% { transform: translateX(0); }
  15% { transform: translateX(-12px) rotate(-3deg); }
  30% { transform: translateX(12px) rotate(3deg); }
  45% { transform: translateX(-8px) rotate(-2deg); }
  60% { transform: translateX(8px) rotate(2deg); }
  75% { transform: translateX(-4px); }
}

@keyframes popSuccess {
  0% { transform: scale(1); }
  40% { transform: scale(1.12); }
  70% { transform: scale(0.98); }
  100% { transform: scale(1); }
}

@keyframes sonarWave {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.8); }
  70% { box-shadow: 0 0 0 14px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

@keyframes timerPulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(251, 191, 36, 0.6); }
  50% { transform: scale(1.08); box-shadow: 0 0 15px 4px rgba(251, 191, 36, 0.8); }
}

@keyframes iconBounce {
  0% { transform: translateY(0) scale(1); }
  40% { transform: translateY(-8px) scale(1.15) rotate(10deg); }
  80% { transform: translateY(2px) scale(0.95); }
  100% { transform: translateY(0) scale(1); }
}

/* Scroll Reveal Classes */
.reveal {
  opacity: 0;
  transform: translateY(40px) scale(0.98);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1), transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Floating Decorative Math Particles Layer */
.floating-math-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.math-particle {
  position: absolute;
  font-family: var(--font-header);
  font-weight: 700;
  color: var(--brand-primary);
  opacity: 0.4;
  user-select: none;
  will-change: transform, opacity;
}

.math-particle.p1 { top: 12%; left: 5%; font-size: 3.2rem; animation: floatSymbol1 7s ease-in-out infinite 0s; }
.math-particle.p2 { top: 20%; right: 7%; font-size: 3.8rem; animation: floatSymbol2 8s ease-in-out infinite 1s; color: #C084FC; }
.math-particle.p3 { top: 55%; left: 8%; font-size: 2.8rem; animation: floatSymbol1 6.5s ease-in-out infinite 2s; color: #34D399; }
.math-particle.p4 { top: 60%; right: 10%; font-size: 3.4rem; animation: floatSymbol2 7.5s ease-in-out infinite 3s; }
.math-particle.p5 { top: 35%; left: 2%; font-size: 2.4rem; animation: floatSymbol1 9s ease-in-out infinite 1.5s; color: #FBBF24; }
.math-particle.p6 { top: 40%; right: 3%; font-size: 2.8rem; animation: floatSymbol2 8.5s ease-in-out infinite 2.5s; color: #818CF8; }

/* Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(11, 13, 18, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 16px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-header);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
  margin-right: 12px;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.brand-logo:hover {
  transform: scale(1.03);
}

.brand-icon-img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 0 16px rgba(129, 140, 248, 0.5);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.brand-logo:hover .brand-icon-img {
  transform: rotate(10deg) scale(1.1);
  box-shadow: 0 0 25px rgba(129, 140, 248, 0.9);
}

.brand-badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 12px;
  background: rgba(52, 211, 153, 0.15);
  color: var(--semantic-success);
  font-weight: 600;
  border: 1px solid rgba(52, 211, 153, 0.3);
  margin-left: 2px;
  white-space: nowrap;
  animation: sonarWave 3s infinite;
}

.main-navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  position: relative;
  transition: color 0.25s ease, transform 0.25s ease;
  padding: 6px 4px;
  display: inline-block;
  white-space: nowrap;
  letter-spacing: -0.01em;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, #818CF8, #34D399);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 2px;
}

.nav-link:hover, .nav-link.active {
  color: #FFFFFF;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 13px 28px;
  border-radius: 30px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  border: none;
}

.btn-primary {
  background: var(--brand-gradient);
  background-size: 200% auto;
  color: #FFFFFF;
  box-shadow: 0 4px 25px var(--brand-glow);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: skewX(-25deg);
}

.btn-primary:hover::before {
  animation: shineSweep 1.2s ease;
}

.btn-primary:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 12px 38px rgba(129, 140, 248, 0.6);
  background-position: right center;
}

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

.btn-secondary:hover {
  background: var(--surface-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 10px 30px rgba(129, 140, 248, 0.25);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.6rem;
  cursor: pointer;
}

/* Hero Section */
.hero-section {
  padding-top: calc(var(--header-height) + var(--space-xxxl));
  padding-bottom: var(--space-xxxl);
  text-align: center;
  position: relative;
}

.hero-glow {
  position: absolute;
  top: 0%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 480px;
  background: radial-gradient(circle, rgba(129, 140, 248, 0.25) 0%, rgba(192, 132, 252, 0.15) 40%, transparent 75%);
  pointer-events: none;
  z-index: 0;
  animation: pulseGlow 8s ease-in-out infinite;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin: 0 auto;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 8px 22px;
  border-radius: 30px;
  background: rgba(22, 26, 36, 0.85);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-accent);
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  box-shadow: 0 0 25px rgba(129, 140, 248, 0.25);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.hero-pill::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transform: skewX(-25deg);
  animation: shineSweep 4s ease infinite;
}

.hero-pill:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 0 35px rgba(129, 140, 248, 0.5);
  border-color: var(--semantic-success);
}

.hero-pill span {
  color: var(--brand-primary);
  font-weight: 700;
}

.hero-title {
  font-size: 4.2rem;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
  font-weight: 700;
  line-height: 1.08;
  background: linear-gradient(180deg, #FFFFFF 0%, #E0E7FF 60%, #9CA3AF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.28rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-xxl);
}

.badge-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-card);
  backdrop-filter: blur(12px);
  padding: 8px 18px;
  border-radius: 20px;
  border: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.badge-item:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   NEW: Interactive Mental Speed Benchmark Calculator Widget
   ========================================================================== */
.calc-widget-section {
  padding: var(--space-xxl) 0;
}

.calc-widget-card {
  background: var(--surface-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: var(--space-xxl);
  max-width: 820px;
  margin: 0 auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 35px rgba(129, 140, 248, 0.2);
}

.calc-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.calc-header h3 {
  font-size: 1.8rem;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.calc-slider-group {
  margin: var(--space-xl) 0;
  text-align: center;
}

.calc-slider-label {
  font-family: var(--font-header);
  font-size: 1.2rem;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.calc-slider-val {
  font-size: 2rem;
  font-weight: 700;
  color: var(--brand-primary);
}

.calc-slider-input {
  width: 100%;
  height: 10px;
  border-radius: 5px;
  background: var(--surface-elevated);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.calc-slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--brand-gradient);
  box-shadow: 0 0 20px var(--brand-primary);
  cursor: pointer;
  transition: transform 0.2s ease;
}

.calc-slider-input::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.calc-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  text-align: center;
  margin-top: var(--space-xl);
}

.calc-metric-box {
  background: var(--surface-background);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.calc-metric-box:hover {
  transform: translateY(-4px);
  border-color: var(--brand-primary);
}

.calc-metric-val {
  font-family: var(--font-header);
  font-size: 2rem;
  font-weight: 700;
  color: var(--brand-primary);
  margin-bottom: 2px;
}

.calc-metric-lbl {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Interactive Screenshot Lightbox Modal
   ========================================================================== */
.lightbox-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 7, 10, 0.92);
  backdrop-filter: blur(24px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.lightbox-modal.active {
  display: flex;
  opacity: 1;
}

.lightbox-content {
  max-width: 900px;
  max-height: 90vh;
  text-align: center;
  position: relative;
}

.lightbox-img {
  max-height: 75vh;
  max-width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.8);
  border: 1px solid var(--border-subtle);
}

.lightbox-caption {
  font-family: var(--font-header);
  font-size: 1.2rem;
  color: var(--text-primary);
  margin-top: var(--space-md);
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: -10px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 2rem;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.lightbox-close:hover {
  transform: scale(1.2);
}

/* Details Section (#details) */
.details-section {
  padding: var(--space-xxxl) 0;
  position: relative;
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xxl);
}

.details-card {
  background: var(--surface-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xxl);
  position: relative;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  cursor: pointer;
}

.details-card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: var(--border-accent);
  box-shadow: 0 22px 50px rgba(129, 140, 248, 0.3);
  background: var(--surface-card-hover);
}

.details-card h3 {
  font-size: 1.4rem;
  color: var(--brand-primary);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: transform 0.3s ease;
}

.details-card:hover h3 {
  transform: translateX(4px);
}

.details-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.spec-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  background: rgba(129, 140, 248, 0.18);
  color: var(--brand-primary);
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  border: 1px solid rgba(129, 140, 248, 0.35);
  transition: all 0.3s ease;
}

.details-card:hover .spec-badge {
  background: rgba(52, 211, 153, 0.2);
  color: var(--semantic-success);
  border-color: rgba(52, 211, 153, 0.4);
}

/* App Screenshots Showcase Section with Tabbed Galleries */
.showcase-section {
  padding: var(--space-xxxl) 0;
}

.showcase-tabs-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xxl);
}

.showcase-tab-btn {
  background: var(--surface-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 12px 30px;
  border-radius: 30px;
  font-family: var(--font-header);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.showcase-tab-btn.active, .showcase-tab-btn:hover {
  background: var(--brand-gradient);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 8px 30px var(--brand-glow);
  transform: translateY(-3px) scale(1.03);
}

.showcase-tab-content {
  display: none;
}

.showcase-tab-content.active {
  display: block;
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xl);
  align-items: center;
  justify-content: center;
}

.watch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-xl);
  align-items: center;
  justify-content: center;
  max-width: 960px;
  margin: 0 auto;
}

.ipad-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-xl);
  align-items: center;
  justify-content: center;
}

.device-card {
  background: var(--surface-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 12px;
  overflow: hidden;
  position: relative;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.5);
  cursor: pointer;
}

.device-card:hover {
  transform: translateY(-14px) scale(1.04);
  border-color: var(--border-accent);
  box-shadow: 0 28px 60px rgba(129, 140, 248, 0.35);
}

.device-card img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  display: block;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.device-card:hover img {
  transform: scale(1.02);
}

.watch-card {
  background: var(--surface-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
  cursor: pointer;
}

.watch-card:hover {
  transform: translateY(-12px) scale(1.05);
  border-color: var(--border-accent);
  box-shadow: 0 22px 50px rgba(192, 132, 252, 0.3);
}

.watch-card img {
  max-width: 180px;
  margin: 0 auto;
  border-radius: 28px;
  display: block;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
  transition: transform 0.4s ease;
}

.watch-card:hover img {
  transform: scale(1.03);
}

.device-caption {
  text-align: center;
  padding: 14px 8px 6px 8px;
  font-family: var(--font-header);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.device-caption span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-top: 2px;
}

/* Interactive Math Speed Demo Widget */
.demo-section {
  padding: var(--space-xxl) 0;
}

.demo-card {
  background: var(--surface-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: var(--space-xxl);
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 35px rgba(129, 140, 248, 0.2);
  transition: all 0.35s ease;
}

.demo-card:hover {
  box-shadow: 0 28px 75px rgba(129, 140, 248, 0.32);
}

.demo-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-subtle);
}

.demo-title {
  font-size: 1.15rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-weight: 600;
}

.timer-badge {
  font-family: var(--font-header);
  font-size: 1.3rem;
  color: var(--semantic-warning);
  background: rgba(251, 191, 36, 0.15);
  padding: 4px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(251, 191, 36, 0.35);
  transition: all 0.3s ease;
}

.timer-badge.warning {
  animation: timerPulse 0.6s infinite;
  color: #F87171;
  background: rgba(248, 113, 113, 0.2);
  border-color: rgba(248, 113, 113, 0.5);
}

.score-badge {
  font-family: var(--font-header);
  font-size: 1.3rem;
  color: var(--semantic-success);
  background: rgba(52, 211, 153, 0.15);
  padding: 4px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(52, 211, 153, 0.35);
  transition: transform 0.2s ease;
}

.score-badge.bump {
  animation: popSuccess 0.35s ease;
}

.equation-box {
  font-family: var(--font-header);
  font-size: 4.5rem;
  font-weight: 700;
  margin: var(--space-lg) 0;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 2px;
  color: var(--text-primary);
  text-shadow: 0 0 25px rgba(255, 255, 255, 0.25);
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.demo-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.option-btn {
  background: var(--surface-background);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  font-family: var(--font-header);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.option-btn:hover {
  background: var(--surface-elevated);
  border-color: var(--brand-primary);
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 10px 28px rgba(129, 140, 248, 0.35);
}

.option-btn.correct {
  background: rgba(52, 211, 153, 0.35) !important;
  border-color: var(--semantic-success) !important;
  color: var(--semantic-success) !important;
  animation: popSuccess 0.35s ease;
  box-shadow: 0 0 30px rgba(52, 211, 153, 0.6) !important;
}

.option-btn.incorrect {
  background: rgba(248, 113, 113, 0.35) !important;
  border-color: var(--semantic-error) !important;
  color: var(--semantic-error) !important;
  animation: elasticShake 0.4s ease;
  box-shadow: 0 0 30px rgba(248, 113, 113, 0.6) !important;
}

.demo-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-xl) 0;
}

.final-score {
  font-family: var(--font-header);
  font-size: 3.5rem;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: popSuccess 0.5s ease;
}

/* Features Grid */
.features-section {
  padding: var(--space-xxxl) 0;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto var(--space-xxl) auto;
}

.section-tag {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--brand-primary);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.section-title {
  font-size: 2.6rem;
  margin-bottom: var(--space-sm);
  background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.feature-card {
  background: var(--surface-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.feature-card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: var(--border-accent);
  box-shadow: 0 22px 50px rgba(129, 140, 248, 0.28);
  background: var(--surface-card-hover);
}

.feature-icon {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-sm);
  background: rgba(129, 140, 248, 0.18);
  border: 1px solid rgba(129, 140, 248, 0.35);
  color: var(--brand-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: var(--space-md);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.feature-card:hover .feature-icon {
  animation: iconBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.feature-title {
  font-size: 1.3rem;
  margin-bottom: var(--space-sm);
  transition: color 0.3s ease;
}

.feature-card:hover .feature-title {
  color: var(--brand-primary);
}

.feature-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Metrics Section */
.metrics-section {
  background: var(--surface-card);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-xxl) 0;
  margin: var(--space-xxxl) 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  text-align: center;
}

.metric-card {
  transition: transform 0.3s ease;
}

.metric-card:hover {
  transform: translateY(-4px);
}

.metric-number {
  font-family: var(--font-header);
  font-size: 3.6rem;
  font-weight: 700;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-xs);
}

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

/* Support & Privacy */
.support-hero {
  padding-top: calc(var(--header-height) + var(--space-xxl));
  padding-bottom: var(--space-xl);
  text-align: center;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto var(--space-xxxl) auto;
}

.faq-item {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-question {
  padding: var(--space-lg);
  font-family: var(--font-header);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 var(--space-lg);
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 var(--space-lg) var(--space-lg) var(--space-lg);
}

.faq-icon {
  transition: transform 0.35s ease;
  color: var(--brand-primary);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Support Center Search & Category Grid Styles */
.support-search-wrapper {
  max-width: 680px;
  width: 100%;
  margin: var(--space-xl) auto 0 auto;
  position: relative;
  display: block;
}

.support-search-input {
  width: 100%;
  box-sizing: border-box;
  padding: 16px 24px 16px 54px;
  background: #161a29;
  border: 1px solid rgba(129, 140, 248, 0.4);
  border-radius: 30px;
  color: #F9FAFB;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all 0.3s ease;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.support-search-input:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.4);
}

.support-search-icon {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--brand-primary);
  font-size: 1.2rem;
  pointer-events: none;
  z-index: 2;
}

.support-categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xxl);
}

.support-cat-card {
  background: #161a29;
  background: linear-gradient(145deg, rgba(26, 31, 50, 0.95), rgba(18, 22, 36, 0.95));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(129, 140, 248, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  opacity: 1 !important;
  transform: none !important;
}

.support-cat-card:hover {
  transform: translateY(-6px) !important;
  border-color: rgba(129, 140, 248, 0.6);
  box-shadow: 0 20px 45px rgba(129, 140, 248, 0.3);
}

.support-cat-icon {
  font-size: 2.2rem;
  margin-bottom: var(--space-md);
  display: inline-block;
}

.support-cat-title {
  font-family: var(--font-header);
  font-size: 1.25rem;
  color: var(--brand-primary);
  margin-bottom: var(--space-xs);
}

.support-cat-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

.sla-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(129, 140, 248, 0.1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-xl);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.sla-badge {
  background: var(--semantic-success);
  color: #0F1115;
  font-weight: 700;
  font-size: 0.82rem;
  padding: 4px 12px;
  border-radius: 20px;
  font-family: var(--font-header);
}

/* Mental Calculation Techniques & Brain Gym Styles */
.technique-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.technique-card {
  background: var(--surface-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.technique-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-accent);
  box-shadow: 0 20px 45px rgba(129, 140, 248, 0.25);
}

.technique-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--brand-primary);
  background: rgba(129, 140, 248, 0.12);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
}

.technique-title {
  font-family: var(--font-header);
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.technique-desc {
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.technique-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.technique-step {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.technique-step-icon {
  color: var(--semantic-success);
  font-weight: bold;
}

/* Target Operand & Equation Component Styles */
.operand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.operand-card {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: all 0.3s ease;
}

.operand-card:hover {
  transform: translateY(-6px);
  border-color: var(--brand-primary);
  box-shadow: 0 15px 35px rgba(129, 140, 248, 0.2);
}

.operand-formula {
  font-family: var(--font-header);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--semantic-success);
  background: rgba(52, 211, 153, 0.1);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin: var(--space-md) 0;
  letter-spacing: 2px;
}

/* 4 Difficulty Tier Styles */
.difficulty-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.difficulty-card {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all 0.35s ease;
  position: relative;
}

.difficulty-card:hover {
  transform: translateY(-6px);
}

.difficulty-card.easy:hover { border-color: #34D399; box-shadow: 0 15px 35px rgba(52, 211, 153, 0.25); }
.difficulty-card.medium:hover { border-color: #818CF8; box-shadow: 0 15px 35px rgba(129, 140, 248, 0.25); }
.difficulty-card.hard:hover { border-color: #F59E0B; box-shadow: 0 15px 35px rgba(245, 158, 11, 0.25); }
.difficulty-card.insane:hover { border-color: #F87171; box-shadow: 0 15px 35px rgba(248, 113, 113, 0.25); }

.difficulty-badge {
  font-family: var(--font-header);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
}

.difficulty-badge.easy { background: rgba(52, 211, 153, 0.15); color: #34D399; }
.difficulty-badge.medium { background: rgba(129, 140, 248, 0.15); color: #818CF8; }
.difficulty-badge.hard { background: rgba(245, 158, 11, 0.15); color: #F59E0B; }
.difficulty-badge.insane { background: rgba(248, 113, 113, 0.15); color: #F87171; }

.difficulty-range {
  font-family: var(--font-header);
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-top: var(--space-sm);
}

/* Game Center Leaderboard & Badges Styles */
.game-center-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.badge-card {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  transition: all 0.35s ease;
}

.badge-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-accent);
  box-shadow: 0 15px 35px rgba(192, 132, 252, 0.25);
}

.badge-icon {
  font-size: 2.8rem;
  line-height: 1;
  flex-shrink: 0;
}

.badge-title {
  font-family: var(--font-header);
  font-size: 1.15rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.badge-desc {
  color: var(--text-secondary);
  font-size: 0.88rem;
}

/* Pro Pricing Comparison Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  align-items: stretch;
}

.pricing-card {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-xxl);
  position: relative;
  transition: all 0.35s ease;
  display: flex;
  flex-direction: column;
}

.pricing-card.popular {
  border-color: var(--brand-primary);
  box-shadow: 0 20px 50px rgba(129, 140, 248, 0.3);
  background: rgba(26, 30, 42, 0.95);
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-accent);
  box-shadow: 0 25px 55px rgba(129, 140, 248, 0.3);
}

.pricing-popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand-gradient);
  color: #0F1115;
  font-family: var(--font-header);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 4px 16px;
  border-radius: 20px;
  letter-spacing: 1px;
}

.pricing-price {
  font-family: var(--font-header);
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: var(--space-md) 0;
}

.pricing-period {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.pricing-features {
  list-style: none;
  margin: var(--space-xl) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.pricing-feature-check {
  color: var(--semantic-success);
  font-weight: bold;
}

/* SLA Banner & Contact Support Form System */
.sla-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(129, 140, 248, 0.08);
  border: 1px solid rgba(129, 140, 248, 0.25);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-xl);
  gap: var(--space-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.sla-badge {
  background: rgba(52, 211, 153, 0.15);
  color: var(--semantic-success);
  border: 1px solid rgba(52, 211, 153, 0.3);
  font-family: var(--font-header);
  font-weight: 700;
  font-size: 0.78rem;
  padding: 6px 14px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.contact-card {
  background: rgba(20, 24, 33, 0.95);
  backdrop-filter: blur(24px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-xxl);
  max-width: 780px;
  margin: 0 auto;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(129, 140, 248, 0.1);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: var(--space-lg);
  text-align: left;
}

.form-label {
  font-family: var(--font-header);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.3px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 14px 16px;
  background: rgba(11, 13, 18, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.5;
  transition: all 0.25s ease;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--brand-primary);
  background: rgba(15, 18, 26, 0.95);
  box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.25);
}

.form-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%3C%23818cf8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
  padding-right: 44px;
  cursor: pointer;
}

.form-select option {
  background-color: #141821;
  color: var(--text-primary);
  padding: 12px;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Glassmorphism Success Modal System */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(11, 13, 18, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 10000;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal-card {
  background: rgba(20, 24, 33, 0.98);
  border: 1px solid var(--semantic-success);
  border-radius: var(--radius-xl);
  padding: var(--space-xxl);
  max-width: 520px;
  width: 100%;
  text-align: center;
  box-shadow: 0 30px 80px rgba(52, 211, 153, 0.25), 0 0 50px rgba(0, 0, 0, 0.8);
  transform: translateY(20px) scale(0.95);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.modal-overlay.active .modal-card {
  transform: translateY(0) scale(1);
}

.modal-icon-ring {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(52, 211, 153, 0.15);
  border: 2px solid var(--semantic-success);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--semantic-success);
  margin: 0 auto var(--space-md) auto;
  box-shadow: 0 0 30px rgba(52, 211, 153, 0.4);
}

.modal-title {
  font-family: var(--font-header);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.modal-ticket-id {
  display: inline-block;
  font-family: monospace;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--semantic-success);
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.3);
  padding: 4px 14px;
  border-radius: 12px;
  margin-bottom: var(--space-md);
  letter-spacing: 1px;
}

.modal-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--space-xl);
}

/* Real-Time Analytics & Site Tracking System */
.track-stats-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(129, 140, 248, 0.12);
  border: 1px solid rgba(129, 140, 248, 0.3);
  color: var(--brand-primary);
  font-family: var(--font-header);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.track-stats-btn:hover {
  background: rgba(129, 140, 248, 0.25);
  border-color: var(--brand-primary);
  box-shadow: 0 0 15px rgba(129, 140, 248, 0.35);
  transform: translateY(-1px);
}

.analytics-drawer {
  position: fixed;
  bottom: -100%;
  left: 0;
  right: 0;
  max-height: 85vh;
  overflow-y: auto;
  background: rgba(15, 18, 26, 0.98);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border-top: 2px solid var(--brand-primary);
  box-shadow: 0 -25px 80px rgba(0, 0, 0, 0.9), 0 0 50px rgba(129, 140, 248, 0.25);
  z-index: 99999;
  padding: var(--space-lg) var(--space-xxl);
  transition: bottom 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.analytics-drawer.open {
  bottom: 0;
}

.analytics-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xs);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border-subtle);
}

.analytics-title {
  font-family: var(--font-header);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.analytics-live-tag {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--semantic-success);
  background: rgba(52, 211, 153, 0.15);
  border: 1px solid rgba(52, 211, 153, 0.3);
  padding: 3px 10px;
  border-radius: 12px;
  letter-spacing: 0.5px;
}

.analytics-close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
  transition: color 0.2s ease;
}

.analytics-close-btn:hover {
  color: var(--text-primary);
}

.analytics-section-hdr {
  font-family: var(--font-header);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--brand-primary);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin: var(--space-md) 0 var(--space-xs) 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.analytics-section-hdr::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}

.analytics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
  gap: var(--space-sm);
}

.analytics-card {
  background: rgba(26, 30, 42, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  transition: border-color 0.25s ease;
}

/* SEO Guide Section Redesign Styling */
.seo-guide-section {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.6) 0%, rgba(30, 27, 75, 0.6) 100%);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-xxl) 0;
}

[data-theme="light"] .seo-guide-section {
  background: linear-gradient(180deg, #F8FAFC 0%, #EEF2FF 100%) !important;
  border-top-color: rgba(79, 70, 229, 0.12) !important;
  border-bottom-color: rgba(79, 70, 229, 0.12) !important;
}

.seo-guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xxl);
}

.seo-guide-card {
  background: var(--surface-card, rgba(255, 255, 255, 0.04));
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.1));
  border-radius: var(--radius-xl, 20px);
  padding: var(--space-xl);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

[data-theme="light"] .seo-guide-card {
  background: #FFFFFF !important;
  border: 1px solid rgba(15, 23, 42, 0.08) !important;
  box-shadow: 0 12px 35px rgba(15, 23, 42, 0.05) !important;
}

.seo-guide-card:hover {
  transform: translateY(-6px);
  border-color: var(--brand-primary, #6366F1);
  box-shadow: 0 20px 45px rgba(99, 102, 241, 0.2);
}

[data-theme="light"] .seo-guide-card:hover {
  border-color: rgba(79, 70, 229, 0.35) !important;
  box-shadow: 0 20px 45px rgba(79, 70, 229, 0.12) !important;
}

.seo-guide-icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.seo-guide-icon-badge.icon-indigo {
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
}

.seo-guide-icon-badge.icon-emerald {
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.seo-guide-icon-badge.icon-violet {
  background: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.25);
}

[data-theme="light"] .seo-guide-icon-badge.icon-indigo {
  background: rgba(79, 70, 229, 0.08) !important;
  border-color: rgba(79, 70, 229, 0.2) !important;
}

[data-theme="light"] .seo-guide-icon-badge.icon-emerald {
  background: rgba(5, 150, 105, 0.08) !important;
  border-color: rgba(5, 150, 105, 0.2) !important;
}

[data-theme="light"] .seo-guide-icon-badge.icon-violet {
  background: rgba(124, 58, 237, 0.08) !important;
  border-color: rgba(124, 58, 237, 0.2) !important;
}

.seo-guide-title {
  font-family: var(--font-header);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary, #0F172A);
  margin-bottom: var(--space-sm);
  line-height: 1.35;
}

[data-theme="light"] .seo-guide-title {
  color: #0F172A !important;
}

.seo-guide-desc {
  font-size: 0.95rem;
  color: var(--text-secondary, #334155);
  line-height: 1.65;
  margin: 0;
}

[data-theme="light"] .seo-guide-desc {
  color: #334155 !important;
}

.analytics-card:hover {
  border-color: var(--border-accent);
}

.analytics-card-val {
  font-family: var(--font-header);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--brand-primary);
}

.analytics-card-lbl {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Analytics Page & Traffic Dashboard Styling */
.analytics-hero {
  padding-top: calc(var(--header-height) + var(--space-xxl));
  padding-bottom: var(--space-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 50% 20%, rgba(99, 102, 241, 0.12) 0%, transparent 65%);
}

.analytics-hero-title {
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  background: linear-gradient(135deg, #FFFFFF 0%, #E2E8F0 50%, #818CF8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.analytics-hero-desc {
  max-width: 680px;
  margin: 0 auto var(--space-xl) auto;
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.6;
}

.analytics-actions-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.analytics-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xxl);
}

.analytics-kpi-card {
  background: #161a29;
  background: linear-gradient(145deg, rgba(26, 31, 50, 0.95), rgba(18, 22, 36, 0.95));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(129, 140, 248, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: left;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 1 !important;
  transform: none !important;
}

.analytics-kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #6366F1, #34D399, #F59E0B);
  opacity: 1;
}

.analytics-kpi-card:hover {
  transform: translateY(-5px) !important;
  border-color: rgba(129, 140, 248, 0.6);
  box-shadow: 0 16px 40px rgba(99, 102, 241, 0.3);
}

.analytics-kpi-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
}

.analytics-kpi-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(129, 140, 248, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  border: 1px solid rgba(129, 140, 248, 0.3);
}

.analytics-kpi-trend {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(52, 211, 153, 0.15);
  color: var(--semantic-success);
  border: 1px solid rgba(52, 211, 153, 0.35);
}

.analytics-kpi-num {
  font-family: var(--font-header);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 4px;
}

.analytics-kpi-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.analytics-dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-xxl);
}

.analytics-panel {
  background: #161a29;
  background: linear-gradient(145deg, rgba(26, 31, 50, 0.95), rgba(18, 22, 36, 0.95));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(129, 140, 248, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transition: border-color 0.3s ease;
  opacity: 1 !important;
  transform: none !important;
}

.analytics-panel:hover {
  border-color: rgba(129, 140, 248, 0.5);
}

.analytics-panel-title {
  font-family: var(--font-header);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: var(--space-md);
}

.bar-metric-row {
  margin-bottom: var(--space-md);
}

.bar-metric-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}

.bar-metric-track {
  height: 12px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  overflow: hidden;
}

.bar-metric-fill {
  height: 100%;
  background: linear-gradient(90deg, #6366F1, #818CF8, #34D399);
  border-radius: 8px;
  transition: width 1s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 12px rgba(129, 140, 248, 0.6);
}

.telemetry-table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid rgba(129, 140, 248, 0.3);
  background: #161a29;
}

.telemetry-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.telemetry-table th {
  padding: 14px var(--space-md);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  font-family: var(--font-header);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.telemetry-table td {
  padding: 14px var(--space-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
}

.telemetry-table tbody tr:hover {
  background: rgba(129, 140, 248, 0.05);
}

.telemetry-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.telemetry-tag.visit { background: rgba(129, 140, 248, 0.15); color: #818CF8; border: 1px solid rgba(129, 140, 248, 0.3); }
.telemetry-tag.drill { background: rgba(52, 211, 153, 0.15); color: #34D399; border: 1px solid rgba(52, 211, 153, 0.3); }
.telemetry-tag.cta { background: rgba(245, 158, 11, 0.15); color: #F59E0B; border: 1px solid rgba(245, 158, 11, 0.3); }

/* Footer */
.site-footer {
  background: rgba(11, 13, 18, 0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-xxl) 0 var(--space-xl) 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xxl);
  margin-bottom: var(--space-xxl);
}

.footer-brand p {
  margin-top: var(--space-md);
  color: var(--text-muted);
  max-width: 320px;
}

.footer-title {
  font-family: var(--font-header);
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--semantic-success);
  font-weight: 500;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--semantic-success);
  animation: sonarWave 2s infinite;
}

/* Universal Mobile Overflow Lock */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
}

body.mobile-menu-open {
  overflow: hidden !important;
}

/* Glassmorphic Mobile Nav Overlay Backdrop */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 7, 12, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: rgba(11, 13, 20, 0.98);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border-bottom: 1px solid rgba(129, 140, 248, 0.25);
  padding: var(--space-md) var(--space-lg);
  z-index: 9999;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.85);
  max-height: calc(100vh - var(--header-height));
  overflow-y: auto;
  overscroll-behavior: contain;
  animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-nav-drawer.open {
  display: block;
}

.mobile-nav-list,
.mobile-nav-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: 0;
  margin: 0;
}

.mobile-nav-drawer .nav-link {
  font-size: 1.05rem;
  font-weight: 500;
  padding: 12px 16px;
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
}

.mobile-nav-drawer .nav-link:hover,
.mobile-nav-drawer .nav-link.active {
  color: #FFFFFF;
  background: rgba(129, 140, 248, 0.15);
  border-left-color: var(--brand-primary);
  padding-left: 20px;
}

/* Header CTA Compact Pill Button */
.header-cta-btn {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 6px !important;
  padding: 8px 18px !important;
  font-size: 0.85rem !important;
  font-weight: 600 !important;
  border-radius: 999px !important;
  white-space: nowrap !important;
  background: linear-gradient(135deg, #6366F1 0%, #818CF8 50%, #C084FC 100%) !important;
  color: #FFFFFF !important;
  box-shadow: 0 4px 18px rgba(129, 140, 248, 0.4) !important;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
  flex-shrink: 0 !important;
  text-decoration: none !important;
  border: none !important;
}

.header-cta-btn:hover {
  transform: translateY(-2px) scale(1.03) !important;
  box-shadow: 0 6px 24px rgba(129, 140, 248, 0.65) !important;
  color: #FFFFFF !important;
}

/* ==========================================================================
   Comprehensive Universal Device Compatibility (Mobile, iPad, Tablet, Desktop)
   ========================================================================== */

/* 1. Large Desktop & iPad Pro (1025px - 1280px) */
@media (max-width: 1280px) {
  .container {
    max-width: 100%;
    padding: 0 var(--space-lg);
  }
  .nav-menu {
    gap: 0.9rem;
  }
  .nav-link {
    font-size: 0.85rem;
  }
}

/* 2. iPad Landscape & Small Laptops (993px - 1024px) */
@media (max-width: 1024px) {
  :root {
    --header-height: 72px;
  }
  .nav-menu {
    display: none !important;
  }
  .mobile-menu-toggle {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
    font-size: 1.3rem;
    line-height: 1;
    cursor: pointer;
    transition: all 0.2s ease;
  }
  .mobile-menu-toggle:active,
  .mobile-menu-toggle.active {
    background: rgba(129, 140, 248, 0.2);
    border-color: var(--brand-primary);
    color: #FFFFFF;
  }
  .hero-title {
    font-size: clamp(2.5rem, 5vw, 3.4rem);
  }
  .hero-subtitle {
    font-size: 1.1rem;
  }
  .features-grid,
  .details-grid,
  .support-categories-grid,
  .technique-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-xl);
  }
  .showcase-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
  }
  .ipad-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
  .watch-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }
  .analytics-dashboard-grid {
    grid-template-columns: 1fr;
  }
  .analytics-kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 3. iPad Portrait & Tablets (768px - 992px) */
@media (max-width: 992px) {
  .hero-section {
    padding-top: calc(var(--header-height) + var(--space-xl));
    padding-bottom: var(--space-xxl);
  }
  .calc-widget-card,
  .demo-card,
  .contact-card {
    padding: var(--space-xl);
  }
  .calc-metrics-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
  .footer-brand {
    grid-column: span 2;
  }
}

/* 4. Mobile Phones & Mobile Browsers (< 767px) */
@media (max-width: 767px) {
  /* Prevent iOS Safari from auto-zooming on focus */
  input, select, textarea, .form-control, .search-input {
    font-size: 16px !important;
  }

  .hero-section {
    padding-top: calc(var(--header-height) + var(--space-lg));
    padding-bottom: var(--space-xl);
  }
  .hero-title {
    font-size: clamp(1.9rem, 7.5vw, 2.5rem);
    line-height: 1.15;
  }
  .hero-subtitle {
    font-size: 0.98rem;
    line-height: 1.5;
  }
  .hero-pill {
    padding: 6px 14px;
    font-size: 0.82rem;
    max-width: 100%;
    white-space: normal;
    text-align: center;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
    min-height: 48px;
    font-size: 0.95rem;
  }
  .features-grid,
  .details-grid,
  .support-categories-grid,
  .technique-grid,
  .operand-grid,
  .difficulty-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  /* Horizontal Swipeable Showcase Tabs for App Store Feel */
  .showcase-tabs-nav {
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    white-space: nowrap;
    gap: 8px;
    padding-bottom: 8px;
    margin-bottom: var(--space-lg);
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }
  .showcase-tabs-nav::-webkit-scrollbar {
    display: none;
  }
  .showcase-tab-btn {
    flex: 0 0 auto;
    scroll-snap-align: start;
    padding: 8px 18px;
    font-size: 0.88rem;
    border-radius: 999px;
  }
  
  .showcase-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
  .ipad-grid {
    grid-template-columns: 1fr;
  }
  .watch-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .calc-metrics-grid {
    grid-template-columns: 1fr;
  }
  .calc-widget-card,
  .demo-card,
  .contact-card {
    padding: var(--space-lg) var(--space-md);
  }
  
  /* Interactive Math Game 2x2 Grid Layout for Mobile */
  .equation-box {
    font-size: clamp(1.8rem, 7.5vw, 2.6rem);
    min-height: 68px;
    padding: var(--space-sm) var(--space-md);
  }
  .demo-options {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: var(--space-md);
  }
  .option-btn {
    font-size: 1.35rem;
    padding: 12px var(--space-xs);
    min-height: 52px;
    border-radius: var(--radius-md);
  }
  .option-btn:active {
    transform: scale(0.96);
  }

  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .footer-brand {
    grid-column: span 1;
  }
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
  .analytics-kpi-grid {
    grid-template-columns: 1fr;
  }
  .analytics-actions-bar {
    flex-direction: column;
    width: 100%;
  }
  .analytics-actions-bar .btn {
    width: 100%;
  }
  .analytics-drawer {
    width: 100% !important;
    max-width: 100vw !important;
    left: 0 !important;
    right: 0 !important;
    bottom: -100% !important;
    border-radius: 20px 20px 0 0 !important;
    max-height: 85vh !important;
    overflow-y: auto !important;
    padding: var(--space-lg) var(--space-md) !important;
    transition: bottom 0.4s cubic-bezier(0.16, 1, 0.3, 1) !important;
  }

  .analytics-drawer.open {
    bottom: 0 !important;
  }
}

/* 5. Small Compact Mobile Phones (320px - 575px) */
@media (max-width: 575px) {
  .container {
    padding: 0 var(--space-md);
  }
  .brand-logo {
    font-size: 1.02rem;
  }
  .brand-icon-img {
    width: 32px;
    height: 32px;
  }
  .brand-badge {
    display: none; /* Hide badge on tiny mobile screens so logo title & CTA align cleanly */
  }
  .header-cta-btn {
    padding: 6px 12px !important;
    font-size: 0.78rem !important;
  }
  .showcase-grid,
  .watch-grid {
    grid-template-columns: 1fr;
  }
  .modal-card {
    padding: var(--space-lg);
  }
  .calc-metrics-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xs);
  }
}

/* 6. Ultra-Compact Mobile Devices (320px - 400px) */
@media (max-width: 400px) {
  .container {
    padding: 0 12px;
  }
  .brand-logo span:not(.brand-badge) {
    font-size: 0.95rem;
  }
  .header-cta-btn {
    padding: 6px 10px !important;
    font-size: 0.75rem !important;
  }
  .header-cta-btn svg {
    width: 14px;
    height: 14px;
  }
  .option-btn {
    font-size: 1.2rem;
  }
}