/* ==========================================
   INDEX PAGE DEDICATED STYLESHEET
   ========================================== */

/* Import base styles and variables */
@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;500;600;700&display=swap');
@import url('mathlogame-brand.css');

/* ==========================================
   GENERAL STYLES
   ========================================== */

/* CSS Variables */
:root {
  /* Modern Color Palette */
  --primary-color: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --secondary-color: #f59e0b;
  --accent-color: #10b981;
  
  /* Warm Background Colors */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-card: #1e293b;
  --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  
  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-accent: #fbbf24;
  
  /* Border & Shadow */
  --border-color: #334155;
  --border-light: #475569;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Typography */
  --font-family: 'Cairo', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

/* Reset and Base Styles */
* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Main Content */
.main-content {
  min-height: 100vh;
  background-color: #00000053;
}

/* ==========================================
   NAVIGATION STYLES
   ========================================== */

.modern-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(15, 23, 42, 0.95);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: var(--z-fixed);
  transition: var(--transition-normal);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-logo img {
  height: 42px !important;
  width: auto;
  transition: var(--transition-normal);
}

.nav-logo img:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-base);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: rgba(99, 102, 241, 0.1);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition-normal);
  transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 80%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-normal);
}

/* ==========================================
   HERO SECTION STYLES
   ========================================== */

.hero-section {
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-container {
  position: relative;
  z-index: 2;
}

.hero-content {
  display: flex;
}

.hero-text {
  text-align: left;
  width: 100%;
}

.hero-text-description {
  font-size: 1.1rem !important;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
  max-width: 750px;
  width: 100%;
}

.hero-text-description span.mathlogame-logo {
  font-size: 1.2rem !important;
}

.hero-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 2rem;
  animation: float 6s ease-in-out infinite;
}

.hero-logo img {
  max-width: 300px;
  height: auto;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.hero-headline {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff, #e0e7ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  position: relative;
  text-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
  animation: subtleGlow 3s ease-in-out infinite alternate;
}

.hero-description {
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 3rem;
  line-height: 1.6;
}

/* Creative CTA Buttons */
.cta-buttons {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.creative-cta-container {
  position: relative;
}

.creative-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  border-radius: 20px;
  text-decoration: none;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  min-width: 280px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.creative-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.6s ease;
}

.creative-cta:hover::before {
  left: 100%;
}

.primary-cta {
  background: linear-gradient(135deg, #5497a980 0%, #13a98988 50%, #c5581082 100%);
  color: white;
  box-shadow: 0 8px 32px rgba(84, 150, 169, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.primary-cta::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg,
      rgba(84, 151, 169, 0.389) 0%,
      rgba(19, 169, 137, 0.388) 33%,
      rgba(197, 89, 16, 0.3) 66%,
      rgba(84, 189, 218, 0.3) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.primary-cta:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 15px 40px rgba(84, 150, 169, 0.6);
  background: linear-gradient(135deg, #c5581072 0%, #13a98983 50%, #5497a998 100%);
}

.primary-cta:hover::after {
  opacity: 1;
}

.secondary-cta {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(255, 255, 255, 0.1);
}

.secondary-cta:hover {
  transform: translateY(-5px) scale(1.02);
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 15px 40px rgba(255, 255, 255, 0.2);
}

.cta-content {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
}

.cta-icon {
  width: 50px;
  height: 50px;
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  transition: all 0.3s ease;
}

.primary-cta .cta-icon {
  background: rgba(255, 255, 255, 0.2);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.secondary-cta .cta-icon {
  background: rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.creative-cta:hover .cta-icon {
  transform: scale(1.1) rotate(5deg);
}

.cta-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.cta-title {
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.2;
  text-shadow: 2px 1px rgb(26, 62, 99) !important;
}

.cta-subtitle {
  font-size: 0.85rem;
  opacity: 0.8;
  font-weight: 400;
}

.cta-arrow {
  font-size: 1.2rem;
  transition: all 0.3s ease;
  opacity: 0.7;
}

.creative-cta:hover .cta-arrow {
  transform: translateX(5px);
  opacity: 1;
}

.primary-cta:hover .cta-arrow {
  transform: translateX(8px) scale(1.1);
}

/* Subtle glow animation */
@keyframes subtlePulse {
  0%, 100% {
    box-shadow: 0 8px 32px rgba(84, 150, 169, 0.4);
  }
  25% {
    box-shadow: 0 8px 32px rgba(19, 169, 136, 0.5);
  }
  50% {
    box-shadow: 0 8px 32px rgba(197, 89, 16, 0.4);
  }
  75% {
    box-shadow: 0 8px 32px rgba(84, 150, 169, 0.6);
  }
}

.primary-cta {
  animation: subtlePulse 3s ease-in-out infinite;
}

.primary-cta:hover {
  animation: none;
}

.hero-illustration {
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo-animation {
  position: relative;
  animation: pulse 4s ease-in-out infinite;
  z-index: 2;
}

.logo-animation img {
  max-width: 400px;
  height: auto;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* Math Symbols and Fun Elements - Background Only */
.math-symbols {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 1;
  width: 100vw;
  height: 100vh;
}

.math-symbol {
  position: absolute;
  width: 60px;
  height: 60px;
  opacity: 0;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
  transition: opacity 1s ease-in-out, transform 2s ease-in-out;
}

.math-symbol img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.math-symbol:nth-child(1) {
  top: 10%;
  left: 5%;
  width: 70px;
  height: 70px;
}

.math-symbol:nth-child(2) {
  top: 20%;
  left: 25%;
  width: 55px;
  height: 55px;
}

.math-symbol:nth-child(3) {
  top: 15%;
  left: 45%;
  width: 65px;
  height: 65px;
}

.math-symbol:nth-child(4) {
  top: 25%;
  left: 65%;
  width: 60px;
  height: 60px;
}

.math-symbol:nth-child(5) {
  top: 35%;
  left: 85%;
  width: 50px;
  height: 50px;
}

.math-symbol:nth-child(6) {
  top: 50%;
  left: 10%;
  width: 65px;
  height: 65px;
}

.math-symbol:nth-child(7) {
  top: 60%;
  left: 30%;
  width: 55px;
  height: 55px;
}

.math-symbol:nth-child(8) {
  top: 55%;
  left: 50%;
  width: 60px;
  height: 60px;
}

.math-symbol:nth-child(9) {
  top: 65%;
  left: 70%;
  width: 50px;
  height: 50px;
}

.math-symbol:nth-child(10) {
  top: 70%;
  left: 90%;
  width: 70px;
  height: 70px;
}

.math-symbol:nth-child(11) {
  top: 80%;
  left: 15%;
  width: 55px;
  height: 55px;
}

.math-symbol:nth-child(12) {
  top: 85%;
  left: 40%;
  width: 60px;
  height: 60px;
}

.math-symbol.visible {
  opacity: 0.2;
}

.math-symbol.visible:hover {
  opacity: 0.4;
  transform: scale(1.1);
}

/* ==========================================
   QUOTE SECTION STYLES
   ========================================== */

.quote-section {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(84, 150, 169, 0.1) 50%, var(--bg-secondary) 100%);
  padding: 5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.quote-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.02"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  pointer-events: none;
}

.quote-content {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.quote-decoration {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  gap: 1rem;
}

.quote-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #5496a9, #13a988);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  box-shadow: 0 8px 25px rgba(84, 150, 169, 0.3);
  animation: float 3s ease-in-out infinite;
}

.quote-line {
  width: 100px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
  position: relative;
}

.quote-line::before,
.quote-line::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--primary-color);
  border-radius: 50%;
  top: 50%;
  transform: translateY(-50%);
}

.quote-line::before {
  left: -4px;
}

.quote-line::after {
  right: -4px;
}

.quote-text-container {
  background: rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 2.5rem;
  margin-bottom: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.quote-text {
  font-size: 1.4rem;
  color: var(--text-primary);
  line-height: 1.8;
  margin: 0;
  position: relative;
  z-index: 2;
  text-align: left;
}

.quote-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2rem;
}

.quote-author-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #13a988, #c55910);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: white;
  box-shadow: 0 4px 15px rgba(19, 169, 136, 0.3);
}

.author-info {
  text-align: left;
}

.quote-author {
  color: var(--primary-color);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0;
}

.author-title {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
  opacity: 0.8;
}

.quote-stats {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(84, 150, 169, 0.2);
}

.stat-number {
  display: block;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* ==========================================
   FEATURES SECTION STYLES
   ========================================== */

.features-section {
  background: var(--bg-primary);
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23ffffff" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
  pointer-events: none;
}

.features-container {
  position: relative;
  z-index: 2;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: rgba(255, 255, 255, 0.05);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.6s ease;
}

.feature-card:hover::before {
  left: 100%;
}

.feature-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 40px rgba(84, 150, 169, 0.3);
  border-color: rgba(84, 150, 169, 0.3);
  background: rgba(255, 255, 255, 0.08);
}

.feature-icon-container {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  position: relative;
  transition: all 0.3s ease;
}

.feature-card:hover .feature-icon-container {
  transform: scale(1.1) rotate(5deg);
}

.feature-icon {
  font-size: 2rem;
  color: white;
  z-index: 2;
  position: relative;
}

.feature-icon-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 20px;
  opacity: 0.8;
  transition: all 0.3s ease;
}

.feature-card:hover .feature-icon-container::before {
  opacity: 1;
  transform: scale(1.05);
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.3;
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

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

.feature-benefit {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  transition: all 0.3s ease;
}

.feature-benefit:hover {
  color: var(--text-secondary);
  transform: translateX(5px);
}

.feature-benefit::before {
  content: '✓';
  color: var(--accent-color);
  font-weight: bold;
  font-size: 1rem;
}

.feature-cta {
  margin-top: auto;
  padding-top: 1.5rem;
}

.feature-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  padding: 0.5rem 1rem;
  border-radius: 10px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.feature-link:hover {
  background: rgba(99, 102, 241, 0.2);
  border-color: rgba(99, 102, 241, 0.4);
  transform: translateX(5px);
}

.feature-link i {
  transition: transform 0.3s ease;
}

.feature-link:hover i {
  transform: translateX(3px);
}

/* Feature Card Variations */
.feature-card:nth-child(1) .feature-icon-container::before {
  background: linear-gradient(135deg, #5496a9, #13a988);
}

.feature-card:nth-child(2) .feature-icon-container::before {
  background: linear-gradient(135deg, #13a988, #c55910);
}

.feature-card:nth-child(3) .feature-icon-container::before {
  background: linear-gradient(135deg, #c55910, #5496a9);
}

.feature-card:nth-child(4) .feature-icon-container::before {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.feature-card:nth-child(5) .feature-icon-container::before {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
}

.feature-card:nth-child(6) .feature-icon-container::before {
  background: linear-gradient(135deg, #10b981, #06b6d4);
}

/* ==========================================
   RESPONSIVE NAVIGATION
   ========================================== */

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--bg-primary);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: 2rem;
    transition: left 0.3s ease;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-menu.show {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

  /* Hamburger Animation */
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
  }

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

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 0 var(--spacing-sm);
  }

  .nav-logo img {
    height: 36px;
  }
}

/* ==========================================
   HERO RESPONSIVE DESIGN
   ========================================== */

/* Tablet Styles (768px - 1024px) */
@media (max-width: 1024px) and (min-width: 769px) {
  .hero-headline {
    font-size: 3rem;
  }

  .hero-description {
    font-size: 1.1rem;
  }

  .hero-logo img {
    max-width: 280px;
  }

  .logo-animation img {
    max-width: 350px;
  }

  .cta-buttons {
    flex-direction: row;
    justify-content: center;
    gap: 1rem;
  }

  .creative-cta {
    min-width: 200px;
    padding: 1.2rem 1.5rem;
  }

  .cta-title {
    font-size: 1rem;
  }

  .cta-subtitle {
    font-size: 0.8rem;
  }

  .math-symbol {
    width: 45px !important;
    height: 45px !important;
  }

  .math-symbol:nth-child(1),
  .math-symbol:nth-child(4),
  .math-symbol:nth-child(10) {
    width: 55px !important;
    height: 55px !important;
  }

  .math-symbol:nth-child(3),
  .math-symbol:nth-child(6) {
    width: 50px !important;
    height: 50px !important;
  }
}

/* Mobile Styles (up to 768px) */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .hero-headline {
    font-size: 1.8rem;
    line-height: 1.1;
  }

  .hero-description {
    font-size: 0.9rem;
    margin-bottom: 2rem;
  }

  .hero-logo img {
    max-width: 200px;
  }

  .logo-animation img {
    max-width: 220px;
  }

  .hero-illustration {
    height: 220px;
  }

  /* Buttons in one row for mobile */
  .cta-buttons {
    flex-direction: row;
    justify-content: center;
    gap: 0.8rem;
    flex-wrap: wrap;
    padding-bottom: 20px;
  }

  .creative-cta {
    min-width: 130px;
    padding: 0.9rem 1rem;
  }

  .cta-content {
    gap: 0.4rem;
  }

  .cta-icon {
    width: 30px;
    height: 30px;
    font-size: 0.9rem;
  }

  .cta-title {
    font-size: 0.8rem;
  }

  .cta-subtitle {
    font-size: 0.65rem;
  }

  .cta-arrow {
    font-size: 0.9rem;
  }

  .math-symbol {
    width: 25px !important;
    height: 25px !important;
  }

  .math-symbol:nth-child(1),
  .math-symbol:nth-child(4),
  .math-symbol:nth-child(10) {
    width: 30px !important;
    height: 30px !important;
  }

  .math-symbol:nth-child(3),
  .math-symbol:nth-child(6) {
    width: 28px !important;
    height: 28px !important;
  }
}

/* Small Mobile Styles (up to 480px) */
@media (max-width: 480px) {
  .hero-headline {
    font-size: 1.5rem;
  }

  .hero-description {
    font-size: 0.8rem;
  }

  .hero-logo img {
    max-width: 160px;
  }

  .logo-animation img {
    max-width: 180px;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    padding-bottom: 30px;
  }

  .creative-cta {
    min-width: 180px;
    padding: 0.7rem 0.9rem;
  }

  .cta-title {
    font-size: 0.75rem;
  }

  .cta-subtitle {
    font-size: 0.6rem;
  }

  .math-symbol {
    width: 20px !important;
    height: 20px !important;
  }

  .math-symbol:nth-child(1),
  .math-symbol:nth-child(4),
  .math-symbol:nth-child(10) {
    width: 25px !important;
    height: 25px !important;
  }
}

/* ==========================================
   QUOTE RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 768px) {
  .quote-section {
    padding: 3rem 0;
  }

  .quote-content {
    max-width: 100%;
    padding: 0 1rem;
  }

  .quote-text {
    font-size: 1.2rem;
    line-height: 1.7;
  }

  .quote-text-container {
    padding: 2rem 1.5rem;
  }

  .quote-footer {
    flex-direction: column;
    gap: 1.5rem;
  }

  .quote-stats {
    gap: 1rem;
  }

  .stat-item {
    padding: 0.4rem 0.8rem;
  }

  .stat-number {
    font-size: 1.1rem;
  }

  .stat-label {
    font-size: 0.7rem;
  }

  .quote-icon {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }

  .quote-line {
    width: 60px;
  }
}

@media (max-width: 480px) {
  .quote-text {
    font-size: 1.1rem;
  }

  .quote-text-container {
    padding: 1.5rem 1rem;
  }

  .quote-stats {
    gap: 0.8rem;
  }

  .stat-item {
    padding: 0.3rem 0.6rem;
  }

  .stat-number {
    font-size: 1rem;
  }

  .stat-label {
    font-size: 0.65rem;
  }

  .quote-icon {
    width: 45px;
    height: 45px;
    font-size: 1.1rem;
  }

  .quote-line {
    width: 50px;
  }
}

/* ==========================================
   FEATURES RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
  }

  .feature-card {
    padding: 2rem;
  }

  .feature-icon-container {
    width: 70px;
    height: 70px;
  }

  .feature-icon {
    font-size: 1.8rem;
  }

  .feature-title {
    font-size: 1.3rem;
  }
}

@media (max-width: 768px) {
  .features-section {
    padding: 3rem 0;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .feature-card {
    padding: 1.5rem;
  }

  .feature-icon-container {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
  }

  .feature-icon {
    font-size: 1.5rem;
  }

  .feature-title {
    font-size: 1.2rem;
  }

  .feature-description {
    font-size: 0.9rem;
  }

  .feature-benefit {
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .features-grid {
    gap: 1rem;
  }

  .feature-card {
    padding: 1.2rem;
  }

  .feature-icon-container {
    width: 50px;
    height: 50px;
  }

  .feature-icon {
    font-size: 1.3rem;
  }

  .feature-title {
    font-size: 1.1rem;
  }

  .feature-description {
    font-size: 0.85rem;
  }

  .feature-benefit {
    font-size: 0.75rem;
  }
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-align: center;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 3rem;
}

/* ==========================================
   ANIMATIONS
   ========================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes subtleGlow {
  0% {
    text-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
  }
  50% {
    text-shadow: 0 0 30px rgba(99, 102, 241, 0.5), 0 0 40px rgba(99, 102, 241, 0.2);
  }
  100% {
    text-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
  }
}

/* ==========================================
   AD SECTION STYLES
   ========================================== */

.ad-section {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(84, 150, 169, 0.15) 50%, var(--bg-secondary) 100%);
  padding: 5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin: 0 !important;
}

.ad-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="stars" width="50" height="50" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23ffffff" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23stars)"/></svg>');
  pointer-events: none;
}

.ad-container {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.ad-content {
  background: rgba(255, 255, 255, 0.08);
  -webkit-backdrop-filter: blur(15px);
  backdrop-filter: blur(15px);
  border-radius: 25px;
  padding: 3rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.ad-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(84, 150, 169, 0.1), rgba(19, 169, 136, 0.1), rgba(197, 89, 16, 0.1));
  border-radius: 25px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.ad-content:hover::before {
  opacity: 1;
}

.ad-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #fff, #e0e7ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.ad-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.ad-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.7;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.ad-buttons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.ad-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  padding: 1.2rem 2rem;
  border-radius: 15px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  min-width: 200px;
}

.ad-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.6s ease;
}

.ad-cta:hover::before {
  left: 100%;
}

.ad-primary {
  background: linear-gradient(135deg, #5497a9, #13a988);
  color: white;
  box-shadow: 0 8px 25px rgba(84, 150, 169, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.ad-primary:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 15px 35px rgba(84, 150, 169, 0.6);
  background: linear-gradient(135deg, #13a988, #5497a9);
}

.ad-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.1);
}

.ad-secondary:hover {
  transform: translateY(-3px) scale(1.05);
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 15px 35px rgba(255, 255, 255, 0.2);
}

.ad-icon {
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.ad-cta:hover .ad-icon {
  transform: scale(1.1);
}

.ad-primary:hover .ad-icon {
  transform: scale(1.1) rotate(5deg);
}

.ad-features {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.ad-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.ad-feature:hover {
  color: var(--text-secondary);
  transform: translateY(-2px);
}

.ad-feature i {
  color: var(--accent-color);
  font-size: 1rem;
}

/* ==========================================
   AD RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 768px) {
  .ad-section {
    padding: 3rem 0;
  }

  .ad-content {
    padding: 2rem 1.5rem;
    border-radius: 20px;
  }

  .ad-title {
    font-size: 2rem;
  }

  .ad-subtitle {
    font-size: 1.1rem;
  }

  .ad-description {
    font-size: 1rem;
  }

  .ad-buttons {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .ad-cta {
    min-width: 250px;
    padding: 1rem 1.5rem;
  }

  .ad-features {
    gap: 1rem;
    flex-direction: column;
    align-items: center;
  }

  .ad-feature {
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .ad-content {
    padding: 1.5rem 1rem;
  }

  .ad-title {
    font-size: 1.8rem;
  }

  .ad-subtitle {
    font-size: 1rem;
  }

  .ad-description {
    font-size: 0.9rem;
  }

  .ad-cta {
    min-width: 200px;
    padding: 0.9rem 1.2rem;
    font-size: 0.9rem;
  }

  .ad-feature {
    font-size: 0.8rem;
  }
}

/* ==========================================
   FOOTER SECTION STYLES
   ========================================== */

.footer {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  flex-wrap: wrap;
  background-color: rgb(25, 25, 30);
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border-radius: var(--spacing-md);
  box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.1);
  border: 1px solid var(--light-purple);
}

.footer-content {
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  gap: 1px !important;
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.footer-content > * {
  flex: 1;
  align-items: center;
  text-align: center;
  max-width: 95%;
}

.footer-content p {
  font-size: 1rem;
  padding-bottom: 6px;
}

.footer-main-contact {
  padding-bottom: 4px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.socials-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
}

.socials-links a,
.footer-quick ul a {
  color: var(--first-color);
}

.email-link {
  color: var(--first-color);
  text-decoration: none;
}

.socials-links a:hover,
.footer-quick ul a:hover,
.email-link:hover {
  color: var(--light-purple);
}

.copy-rights {
  font-size: 0.75rem;
  padding: 16px;
  text-align: center;
  margin-top: var(--spacing-md) !important;
  margin-bottom: var(--spacing-md) !important;
  background-color: red !important;
}

/* ==========================================
   FOOTER RESPONSIVE DESIGN
   ========================================== */

@media screen and (max-width: 720px) {
  .footer-content {
    flex-direction: column;
    gap: 1rem;
  }
}

@media only screen and (max-width: 550px) {
  .footer-content {
    flex-direction: column;
    gap: 1rem;
  }
}

@media only screen and (max-width: 420px) {
  .footer-main-contact {
    flex-direction: column;
    gap: 0.5rem;
  }

  .footer-content {
    flex-direction: column;
    gap: 1rem;
  }
}

@media screen and (max-width: 320px) {
  .footer-content {
    flex-direction: column;
    gap: 1rem;
  }
} 

/* ==========================================
   FINAL CTA SECTION STYLES
   ========================================== */

.final-cta-section {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  position: relative;
  overflow: hidden;
  padding: 36px 0;
}

.final-cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(99, 102, 241, 0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
  z-index: 1;
}

.final-cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.final-cta-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: center;
}

.final-cta-title .mathlogame-logo {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

.final-cta-description {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.contact-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: rgba(54, 48, 48, 0.848);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border: none;
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: var(--transition-normal);
  box-shadow: 0 4px 15px rgba(48, 49, 99, 0.3);
  position: relative;
  overflow: hidden;
}

.contact-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-normal);
}

.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 101, 241, 0.164);
}

.contact-btn:hover::before {
  left: 100%;
}

.contact-btn i {
  font-size: var(--font-size-base);
  transition: var(--transition-normal);
}

.contact-btn:hover i {
  transform: scale(1.1);
}

.contact-note {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  margin: 0;
  font-style: italic;
}

/* ==========================================
   FINAL CTA RESPONSIVE DESIGN
   ========================================== */

@media screen and (max-width: 768px) {
  .final-cta-section {
    padding: var(--spacing-2xl) 0;
  }
  
  .final-cta-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
  }
  
  .final-cta-description {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-lg);
  }
  
  .contact-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
  }
}

@media screen and (max-width: 480px) {
  .final-cta-section {
    padding: var(--spacing-xl) 0;
  }
  
  .final-cta-title {
    font-size: var(--font-size-2xl);
  }
  
  .final-cta-description {
    font-size: var(--font-size-sm);
  }
  
  .contact-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
  }
  
  .contact-note {
    font-size: 0.75rem;
  }
}