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

:root {
  --primary: #0066ff;
  --primary-dark: #0052cc;
  --secondary: #00d4ff;
  --text-primary: #1a1a1a;
  --text-secondary: #666;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --border: #e5e7eb;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text-primary);
  line-height: 1.6;
  background: var(--bg-white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  padding: 16px 0;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 20px;
  color: var(--text-primary);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-menu a:hover {
  color: var(--primary);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  padding: 100px 0 80px;
  background: linear-gradient(135deg, #f8fafc 0%, #e6f0ff 100%);
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 24px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 16px;
}

.hero-description {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
}

.btn {
  display: inline-block;
  padding: 16px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.3s;
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 102, 255, 0.3);
}

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

.btn-secondary:hover {
  background: var(--primary);
  color: white;
}

.btn-full {
  width: 100%;
  text-align: center;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Sections */
.section {
  padding: 80px 0;
}

h2 {
  font-size: 40px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 60px;
  color: var(--text-primary);
}

h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

/* About Section */
.about {
  background: var(--bg-white);
}

.about-content {
  max-width: 900px;
  margin: 0 auto;
}

.about-content p {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

/* Parameters */
.parameters {
  background: var(--bg-light);
}

.params-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.param-card {
  background: white;
  padding: 40px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s, box-shadow 0.3s;
}

.param-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.param-icon {
  margin-bottom: 20px;
}

.param-card p {
  color: var(--text-secondary);
  font-size: 16px;
}

/* Contact Form */
.consultation-banner {
  background: var(--bg-light);
  padding: 40px 0;
}

.consultation-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  background: white;
  padding: 30px 50px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.consultation-text h3 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  white-space: nowrap;
}

.btn-consultation {
  display: inline-block;
  padding: 16px 40px;
  background: #9b1b30;
  color: white;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  border-radius: 8px;
  white-space: nowrap;
  transition: all 0.3s;
}

.btn-consultation:hover {
  background: #7a1526;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(155, 27, 48, 0.3);
}

/* Audience */
.audience {
  background: var(--bg-white);
}

.audience-content {
  max-width: 900px;
  margin: 0 auto 50px;
}

.audience-content p {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-secondary);
  text-align: center;
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.audience-card {
  background: var(--bg-light);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s;
}

.audience-card:hover {
  transform: translateY(-5px);
}

.audience-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.audience-card p {
  color: var(--text-secondary);
}

/* Program */
.program {
  background: var(--bg-light);
}

.program-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.program-item {
  display: flex;
  gap: 30px;
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s, box-shadow 0.3s;
}

.program-item:hover {
  transform: translateX(10px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.program-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  min-width: 60px;
}

.program-content p {
  color: var(--text-secondary);
  margin-top: 8px;
}

/* Skills */
.skills {
  background: var(--bg-white);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.skill-card {
  background: var(--bg-light);
  padding: 30px;
  border-radius: 12px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.skill-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.skill-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.skill-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Teachers */
.teachers {
  background: var(--bg-light);
}

.teachers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

.teacher-card {
  background: white;
  padding: 40px;
  border-radius: 12px;
  text-align: left;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.teacher-card h3 {
  margin-bottom: 16px;
}

.teacher-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  text-align: left;
}

/* Certificate */
.certificate {
  background: var(--bg-white);
}

.certificate-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

.certificate-visual {
  display: flex;
  justify-content: center;
}

.certificate-info ul {
  list-style: none;
  margin-top: 20px;
}

.certificate-info li {
  padding: 12px 0;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.6;
}

/* Final CTA */
.final-cta {
  background: var(--bg-light);
}

.cta-card {
  max-width: 700px;
  margin: 0 auto;
  background: white;
  padding: 60px;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.cta-card h2 {
  margin-bottom: 20px;
}

.cta-card > p {
  color: var(--text-secondary);
  font-size: 18px;
  margin-bottom: 30px;
}

.cta-benefits {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.form-final {
  margin-top: 30px;
}

/* Footer */
.footer {
  background: var(--text-primary);
  color: white;
  padding: 40px 0;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 20px;
}

.footer p {
  color: rgba(255, 255, 255, 0.7);
}

/* Responsive */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
  }

  h1 {
    font-size: 32px;
  }

  h2 {
    font-size: 28px;
    margin-bottom: 40px;
  }

  .hero {
    padding: 60px 0 40px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-description {
    font-size: 16px;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-stats {
    flex-direction: column;
    gap: 30px;
  }

  .section {
    padding: 60px 0;
  }

  .params-grid,
  .audience-grid,
  .skills-grid {
    grid-template-columns: 1fr;
  }

  .teachers-grid {
    grid-template-columns: 1fr;
  }

  .certificate-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .certificate-visual svg {
    max-width: 100%;
    height: auto;
  }

  .form-card,
  .cta-card {
    padding: 30px;
  }

  .cta-benefits {
    grid-template-columns: 1fr;
  }

  .program-item {
    flex-direction: column;
    gap: 16px;
  }

  .consultation-card {
    flex-direction: column;
    padding: 30px 25px;
    gap: 24px;
    text-align: center;
  }

  .consultation-text h3 {
    white-space: normal;
    font-size: 20px;
  }

  .btn-consultation {
    width: 100%;
    padding: 14px 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  h1 {
    font-size: 26px;
  }

  .btn {
    padding: 14px 24px;
    font-size: 15px;
  }
}