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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #102027;
  background: #f6f9fb;
  line-height: 1.6;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  z-index: 10;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 20px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 14px;
  color: inherit;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: #0f766e;
  color: #ffffff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 1px;
}

.tagline {
  font-size: 0.95rem;
  color: #4b5563;
}

.nav {
  display: flex;
  gap: 18px;
  font-weight: 600;
  color: #1f2937;
}

.nav a {
  padding: 8px 10px;
  border-radius: 999px;
}

.nav a:hover {
  background: #e0f2f1;
  color: #0f766e;
}

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

.nav-toggle span {
  width: 24px;
  height: 3px;
  background: #0f172a;
  border-radius: 999px;
  transition: transform 0.2s ease;
}

.hero {
  padding: 70px 0 60px;
  background: linear-gradient(120deg, #e0f2f1 0%, #ffffff 60%);
}

.page-hero {
  padding: 50px 0 40px;
  background: #e0f2f1;
}

.page-hero h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 12px;
}

.page-hero .lead {
  max-width: 720px;
}

.hero-grid {
  display: grid;
  gap: 40px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #0f766e;
  margin-bottom: 12px;
}

.hero h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 16px;
}

.lead {
  font-size: 1.1rem;
  color: #374151;
}

.hero-actions {
  margin: 24px 0;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  display: inline-block;
}

.btn.primary {
  background: #0f766e;
  color: #ffffff;
}

.btn.secondary {
  background: #f97316;
  color: #ffffff;
}

.btn.ghost {
  border-color: #0f766e;
  color: #0f766e;
}

.hero-badges {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: #0f766e;
  font-weight: 600;
}

.hero-badges span {
  background: #ffffff;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid #cbd5f5;
}

.hero-card {
  background: #ffffff;
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
}

.hero-card ul {
  list-style: none;
  margin: 18px 0 24px;
}

.hero-card li {
  padding: 8px 0;
  border-bottom: 1px solid #e2e8f0;
}

.card-cta {
  display: grid;
  gap: 12px;
}

.small {
  font-size: 0.9rem;
  color: #64748b;
}

.section {
  padding: 70px 0;
}

.section.alt {
  background: #ffffff;
}

.section h3 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.section-lead {
  max-width: 700px;
  margin-bottom: 32px;
  color: #475569;
}

.split {
  display: grid;
  gap: 40px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: start;
}

.info-card {
  background: #f1f5f9;
  border-radius: 16px;
  padding: 24px;
}

.info-card h4 {
  margin-bottom: 12px;
}

.info-card ul {
  list-style: none;
  display: grid;
  gap: 10px;
  color: #334155;
}

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.course-card {
  padding: 22px;
  border-radius: 16px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}

.course-card h4 {
  margin-bottom: 12px;
}

.note {
  margin-top: 24px;
  color: #6b7280;
  font-size: 0.95rem;
}

.checklist {
  list-style: none;
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.checklist li {
  padding-left: 28px;
  position: relative;
}

.checklist li::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #0f766e;
  position: absolute;
  left: 0;
  top: 8px;
}

.stats {
  display: grid;
  gap: 16px;
  background: #0f172a;
  color: #ffffff;
  border-radius: 18px;
  padding: 26px;
}

.stats h4 {
  font-size: 1.8rem;
}

.stats p {
  color: #cbd5f5;
}

.contact {
  display: grid;
  gap: 40px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.contact-grid {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.contact-form {
  background: #ffffff;
  border-radius: 18px;
  padding: 24px;
  display: grid;
  gap: 14px;
  border: 1px solid #e2e8f0;
}

.contact-form label {
  display: grid;
  gap: 6px;
  font-weight: 600;
  color: #1f2937;
}

.contact-form input,
.contact-form textarea {
  border-radius: 10px;
  border: 1px solid #cbd5f5;
  padding: 10px 12px;
  font-size: 0.95rem;
}

.site-footer {
  background: #0f172a;
  color: #e2e8f0;
  padding: 40px 0 20px;
}

.footer-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.footer-grid a {
  display: block;
  margin-top: 8px;
  color: #e2e8f0;
}

.copyright {
  text-align: center;
  margin-top: 30px;
  font-size: 0.9rem;
  color: #94a3b8;
}

@media (max-width: 860px) {
  .nav {
    position: absolute;
    right: 4%;
    top: 74px;
    background: #ffffff;
    flex-direction: column;
    padding: 16px;
    border-radius: 16px;
    box-shadow: 0 20px 30px rgba(15, 23, 42, 0.1);
    display: none;
  }

  .nav.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }
}