:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --secondary-color: #06b6d4;
  --accent-color: #f59e0b;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  
  --bg-color: #ffffff;
  --surface-color: #f8fafc;
  --card-bg: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-light: #94a3b8;
  --border-color: #e2e8f0;
  --shadow-light: rgba(15, 23, 42, 0.08);
  --shadow-medium: rgba(15, 23, 42, 0.12);
  --shadow-heavy: rgba(15, 23, 42, 0.16);
  --overlay: rgba(15, 23, 42, 0.1);
  
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, 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;
  
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  
  --border-radius-sm: 0.375rem;
  --border-radius-base: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  --border-radius-2xl: 1.5rem;
  
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}

[data-theme="dark"] {
  --bg-color: #0f172a;
  --surface-color: #1e293b;
  --card-bg: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-light: #94a3b8;
  --border-color: #334155;
  --shadow-light: rgba(0, 0, 0, 0.2);
  --shadow-medium: rgba(0, 0, 0, 0.3);
  --shadow-heavy: rgba(0, 0, 0, 0.4);
  --overlay: rgba(0, 0, 0, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

*::before,
*::after {
  box-sizing: inherit;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-color);
  transition: background-color var(--transition-base), color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Ccircle cx='20' cy='20' r='2' fill='%23f0f0f0'/%3E%3Ccircle cx='50' cy='50' r='2' fill='%23f0f0f0'/%3E%3Ccircle cx='80' cy='80' r='2' fill='%23f0f0f0'/%3E%3C/svg%3E");
  background-size: 100px 100px;
}

[data-theme="dark"] body {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Ccircle cx='20' cy='20' r='2' fill='%231a1a1a'/%3E%3Ccircle cx='50' cy='50' r='2' fill='%231a1a1a'/%3E%3Ccircle cx='80' cy='80' r='2' fill='%231a1a1a'/%3E%3C/svg%3E");
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--spacing-4);
  padding-right: var(--spacing-4);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(37, 99, 235, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-logo a {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: white;
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: all var(--transition-fast);
}

.nav-logo a:hover {
  transform: scale(1.05);
  color: rgba(255, 255, 255, 0.9);
}

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  gap: var(--spacing-8);
}

.nav-link {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  position: relative;
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--border-radius-base);
  transition: all var(--transition-fast);
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, white, transparent);
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
  color: white;
  background: rgba(255, 255, 255, 0.1);
}

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

.theme-toggle {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 25px;
  width: 60px;
  height: 32px;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-base);
  overflow: hidden;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: scale(1.05);
}

.toggle-track {
  width: 100%;
  height: 100%;
  position: relative;
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 24px;
  height: 24px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .toggle-thumb {
  transform: translateX(26px);
  background: #1e293b;
}

.sun-icon,
.moon-icon {
  font-size: 0.75rem;
  position: absolute;
  transition: all var(--transition-base);
}

[data-theme="light"] .moon-icon,
[data-theme="dark"] .sun-icon {
  opacity: 0;
  transform: rotate(180deg) scale(0.5);
}

[data-theme="light"] .sun-icon,
[data-theme="dark"] .moon-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: var(--spacing-2);
  border-radius: var(--border-radius-sm);
  transition: background-color var(--transition-fast);
}

.hamburger:hover {
  background: rgba(255, 255, 255, 0.1);
}

.bar {
  width: 25px;
  height: 3px;
  background-color: white;
  margin: 3px 0;
  border-radius: 2px;
  transition: all var(--transition-base);
}

.hamburger.active .bar:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active .bar:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-color) 0%, var(--surface-color) 50%, var(--bg-color) 100%);
  padding: var(--spacing-20) 0 var(--spacing-16);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.hero-particles {
  position: absolute;
  width: 100%;
  height: 100%;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--primary-color);
  border-radius: 50%;
  opacity: 0.6;
  animation: float 6s ease-in-out infinite;
}

.particle:nth-child(1) {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
  animation-duration: 8s;
}

.particle:nth-child(2) {
  top: 40%;
  right: 20%;
  animation-delay: 2s;
  animation-duration: 6s;
}

.particle:nth-child(3) {
  bottom: 30%;
  left: 30%;
  animation-delay: 4s;
  animation-duration: 7s;
}

.particle:nth-child(4) {
  top: 60%;
  right: 10%;
  animation-delay: 1s;
  animation-duration: 9s;
}

.particle:nth-child(5) {
  bottom: 20%;
  right: 40%;
  animation-delay: 3s;
  animation-duration: 5s;
}

.background-effects {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
}

.floating-shape {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(45deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
  animation: float-shape 12s ease-in-out infinite;
}

.floating-shape.shape-1 {
  width: 200px;
  height: 200px;
  top: 10%;
  right: 10%;
  animation-delay: 0s;
}

.floating-shape.shape-2 {
  width: 150px;
  height: 150px;
  bottom: 20%;
  left: 5%;
  animation-delay: -6s;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  animation: gradient-shift 15s ease-in-out infinite;
}

.gradient-orb.orb-1 {
  width: 300px;
  height: 300px;
  top: -50px;
  right: -50px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15), transparent);
  animation-delay: 0s;
}

.gradient-orb.orb-2 {
  width: 250px;
  height: 250px;
  bottom: -50px;
  left: -50px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12), transparent);
  animation-delay: -7.5s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes float-shape {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  33% {
    transform: translateY(-30px) rotate(120deg);
  }
  66% {
    transform: translateY(15px) rotate(240deg);
  }
}

@keyframes gradient-shift {
  0%, 100% {
    transform: scale(1) rotate(0deg);
    opacity: 0.15;
  }
  50% {
    transform: scale(1.2) rotate(180deg);
    opacity: 0.08;
  }
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
  display: flex;
  gap: var(--spacing-16);
  align-items: center;
  position: relative;
  justify-content: center;
  z-index: 1;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-6);
  color: var(--text-primary);
  letter-spacing: -0.02em;
  text-align: center;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-8);
  line-height: 1.7;
}

.hero-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
  position: relative;
}

.hero-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width var(--transition-base);
}

.hero-link:hover {
  color: var(--primary-dark);
}

.hero-link:hover::after {
  width: 100%;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-4);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-8);
  justify-content: center;
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
}

.scroll-text {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  opacity: 0.8;
}

.scroll-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: bounce 2s infinite;
}

.scroll-arrow span {
  display: block;
  width: 20px;
  height: 20px;
  border-bottom: 2px solid var(--primary-color);
  border-right: 2px solid var(--primary-color);
  transform: rotate(45deg);
  margin: -10px;
  animation: arrow-wave 1.5s infinite;
}

.scroll-arrow span:nth-child(2) {
  animation-delay: 0.2s;
}

.scroll-arrow span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

@keyframes arrow-wave {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--border-radius-lg);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--font-size-base);
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  text-align: center;
  position: relative;
  overflow: hidden;
  min-width: 160px;
  letter-spacing: 0.025em;
}

.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: left var(--transition-slow);
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

section {
  padding: var(--spacing-20) 0;
  position: relative;
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--spacing-4);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.section-description {
  font-size: var(--font-size-lg);
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-12);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.services {
  background: linear-gradient(135deg, var(--surface-color) 0%, var(--bg-color) 100%);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-8);
}

.service-card {
  background: var(--card-bg);
  padding: var(--spacing-8);
  border-radius: var(--border-radius-xl);
  position: relative;
  transition: all var(--transition-base);
  text-align: center;
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 20px 40px var(--shadow-medium);
}

.service-icon {
  position: relative;
  display: inline-block;
  margin-bottom: var(--spacing-6);
}

.icon-background {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.1;
  transition: all var(--transition-base);
}

.service-card:hover .icon-background {
  opacity: 0.2;
  transform: translate(-50%, -50%) scale(1.1);
}

.service-icon span {
  font-size: 3rem;
  position: relative;
  z-index: 1;
  display: block;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.service-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-4);
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-6);
  line-height: 1.7;
}

.service-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  transition: color var(--transition-fast);
}

.service-link::after {
  content: ' →';
  transition: transform var(--transition-fast);
}

.service-link:hover {
  color: var(--primary-dark);
}

.service-link:hover::after {
  transform: translateX(4px);
}

.training {
  background: linear-gradient(135deg, var(--bg-color) 0%, var(--surface-color) 100%);
}

.content-wrapper {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.content-wrapper h2 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-6);
  color: var(--text-primary);
  text-align: center;
}

.content-text {
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: var(--font-size-lg);
  position: relative;
}

.content-text p {
  margin-bottom: var(--spacing-6);
}

.contact {
  background: linear-gradient(135deg, var(--bg-color) 0%, var(--surface-color) 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-6);
  align-items: start;
}

.contact-card {
  background: var(--card-bg);
  padding: var(--spacing-6);
  border-radius: var(--border-radius-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  height: auto;
  min-height: fit-content;
}

.contact-card.teacher-card {
  align-self: stretch;
  display: flex;
  flex-direction: column;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--overlay), transparent);
  transition: left var(--transition-slow);
}

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

.contact-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px var(--shadow-medium);
}

.contact-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.contact-card:hover::after {
  transform: scaleX(1);
}

.contact-icon {
  position: relative;
  display: inline-block;
  margin-bottom: var(--spacing-4);
}

.icon-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60px;
  height: 60px;
  background: var(--primary-color);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.2;
  animation: icon-pulse 2s ease-in-out infinite;
}

@keyframes icon-pulse {
  0%, 100% { 
    transform: translate(-50%, -50%) scale(1); 
    opacity: 0.2; 
  }
  50% { 
    transform: translate(-50%, -50%) scale(1.2); 
    opacity: 0.1; 
  }
}

.contact-icon span {
  font-size: 2.5rem;
  position: relative;
  z-index: 1;
}

.contact-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-3);
  color: var(--text-primary);
}

.contact-card p {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  margin-bottom: var(--spacing-2);
}

.teacher-info {
  margin-bottom: var(--spacing-4);
}

.teacher-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-2);
}

.teacher-phone {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--primary-color);
  margin-bottom: var(--spacing-1);
}

.teacher-role {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-style: italic;
}

.teacher-dropdown {
  margin-top: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  background: var(--surface-color);
  transition: all var(--transition-base);
}

.teacher-dropdown:hover {
  border-color: var(--primary-color);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.dropdown-trigger {
  width: 100%;
  padding: var(--spacing-4);
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: inherit;
  font-size: var(--font-size-base);
  color: var(--text-primary);
  transition: all var(--transition-fast);
  position: relative;
  min-height: 48px;
}

.dropdown-trigger:hover {
  background: rgba(37, 99, 235, 0.05);
}

.dropdown-trigger:focus {
  outline: none;
  background: rgba(37, 99, 235, 0.1);
  box-shadow: inset 0 0 0 2px var(--primary-color);
}

.dropdown-trigger:active {
  background: rgba(37, 99, 235, 0.15);
}

.dropdown-title {
  font-weight: 600;
  color: var(--primary-color);
  text-align: left;
  flex: 1;
}

.dropdown-icon {
  color: var(--primary-color);
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: var(--spacing-2);
}

.dropdown-trigger[aria-expanded="true"] .dropdown-icon {
  transform: rotate(180deg);
}

.dropdown-content {
  overflow: hidden;
  transition: height var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1);
  height: 0;
}

.dropdown-content[aria-hidden="false"] {
  height: auto;
}

.dropdown-inner {
  padding: var(--spacing-4);
  background: var(--card-bg);
  border-top: 1px solid var(--border-color);
}

.dropdown-inner p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: var(--font-size-base);
  text-align: left;
}

.footer {
  background: var(--text-primary);
  color: var(--surface-color);
  padding: var(--spacing-16) 0 var(--spacing-6);
  position: relative;
}

[data-theme="dark"] .footer {
  background: #020617;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-8);
}

.footer-section h4 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-4);
  color: white;
}

.footer-section p {
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: var(--spacing-2);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-2);
}

.footer-section a {
  color: var(--text-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: var(--spacing-6);
  text-align: center;
  color: var(--text-light);
  font-size: var(--font-size-sm);
  line-height: 1.8;
}

.cookie-consent {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: var(--card-bg);
  color: var(--text-primary);
  padding: var(--spacing-6);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  max-width: 500px;
  border: 1px solid var(--border-color);
  transform: translateY(150%);
  transition: transform var(--transition-base);
}

.cookie-consent.active {
  transform: translateY(0);
}

.cookie-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.cookie-buttons {
  display: flex;
  gap: var(--spacing-3);
  justify-content: flex-end;
}

.cookie-btn {
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--border-radius-base);
  border: none;
  cursor: pointer;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.cookie-btn.accept {
  background: var(--primary-color);
  color: white;
}

.cookie-btn.accept:hover {
  background: var(--primary-dark);
}

.cookie-btn.reject {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.cookie-btn.reject:hover {
  background: var(--surface-color);
}

.content-text bold {
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--text-primary);
}

@media (max-width: 1200px) {
  .contact-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-6);
  }
}

@media (max-width: 1024px) {
  .hero-container {
    gap: var(--spacing-12);
    text-align: center;
  }
  
  .contact-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-5);
  }
  
  .contact-card {
    padding: var(--spacing-5);
  }
}

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

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 80px;
    flex-direction: column;
    background: rgba(37, 99, 235, 0.98);
    backdrop-filter: blur(12px);
    width: 100%;
    text-align: center;
    transition: left var(--transition-base);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    padding: var(--spacing-8) 0;
    gap: var(--spacing-4);
    height: calc(100vh - 80px);
    overflow-y: auto;
  }

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

  .hamburger {
    display: flex;
  }
  
  .hero {
    padding: var(--spacing-20) 0 var(--spacing-12);
    text-align: center;
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-description {
    font-size: var(--font-size-base);
  }
  
  .hero-buttons {
    justify-content: center;
    flex-direction: column;
    align-items: center;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  section {
    padding: var(--spacing-16) 0;
  }
  
  .cookie-consent {
    left: 10px;
    right: 10px;
    bottom: 10px;
  }
  
  .cookie-buttons {
    flex-direction: column;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
  }

  .contact-card {
    padding: var(--spacing-6);
  }

  .dropdown-trigger {
    padding: var(--spacing-4);
    min-height: 48px;
  }

  .dropdown-inner {
    padding: var(--spacing-4);
  }

  .teacher-dropdown {
    margin-top: var(--spacing-4);
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: var(--spacing-3);
    padding-right: var(--spacing-3);
  }
  
  .nav-container {
    padding: 0 var(--spacing-3);
  }
  
  .hero-title {
    font-size: var(--font-size-2xl);
  }
  
  .service-card,
  .contact-card {
    padding: var(--spacing-5);
  }
  
  .btn {
    min-width: 200px;
  }

  .dropdown-trigger {
    font-size: var(--font-size-sm);
    padding: var(--spacing-3);
  }

  .dropdown-title {
    font-size: var(--font-size-sm);
  }

  .dropdown-inner {
    padding: var(--spacing-3);
  }

  .teacher-info {
    margin-bottom: var(--spacing-3);
  }
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 3px;
  border-radius: var(--border-radius-sm);
}

@media (prefers-contrast: high) {
  :root {
    --shadow-light: rgba(0, 0, 0, 0.4);
    --shadow-medium: rgba(0, 0, 0, 0.6);
    --shadow-heavy: rgba(0, 0, 0, 0.8);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .background-effects {
    display: none;
  }

  .dropdown-content {
    transition: none;
  }
  
  .dropdown-icon {
    transition: none;
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
