:root {
  --primary: #0f2b4c;
  --secondary: #2e7de1;
  --accent: #f4b942;
  --accent-soft: #fff4d4;
  --background: #f5f8ff;
  --text: #17324d;
  --muted: #5f6d7d;
  --card: #ffffff;
  --border: #dfe9f7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Poppins", "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f8fbff 0%, #eef5fe 100%);
  line-height: 1.6;
}

img {
  max-width: 100%;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  box-shadow: 0 6px 24px rgba(15, 43, 76, 0.06);
}

.nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
}

.brand-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 14px;
  box-shadow: 0 10px 20px rgba(15, 43, 76, 0.12);
}

.nav-links {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  transition: all 0.2s ease;
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--primary);
  background: var(--accent-soft);
}

.hero {
  padding: 4.5rem 0 3.5rem;
  background: radial-gradient(circle at top left, rgba(244, 185, 66, 0.2), transparent 28%), linear-gradient(120deg, #fdfcf7 0%, #edf5ff 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

h1, h2, h3 {
  line-height: 1.2;
  font-family: "Poppins", "Segoe UI", sans-serif;
}

.hero h1 {
  font-size: clamp(2rem, 3.4vw, 3rem);
  margin: 0 0 1rem;
  color: var(--primary);
}

.hero-text {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 680px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.25rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--secondary) 0%, #1d5eb7 100%);
  color: white;
  box-shadow: 0 10px 24px rgba(46, 125, 225, 0.22);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.95);
  color: var(--primary);
  border: 1px solid var(--border);
}

.hero-card,
.info-card,
.content-card,
.course-card,
.stat-card {
  background: var(--card);
  border-radius: 1rem;
  box-shadow: 0 16px 42px rgba(15, 43, 76, 0.08);
  padding: 1.25rem;
  border: 1px solid var(--border);
}

.hero-card ul,
.bullet-list {
  padding-left: 1.1rem;
  color: var(--muted);
}

.section {
  padding: 3rem 0;
}

.alt-section {
  background: linear-gradient(180deg, #f6faff 0%, #eef6ff 100%);
}

.section-heading {
  text-align: center;
  margin-bottom: 2rem;
}

.stats-grid,
.team-grid,
.course-grid {
  display: grid;
  gap: 1rem;
}

.stats-grid {
  grid-template-columns: repeat(4, 1fr);
}

.stat-card {
  text-align: center;
}

.stat-card strong {
  display: block;
  font-size: 1.5rem;
  color: var(--secondary);
}

.split-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: start;
}

.page-content {
  padding: 3rem 0 4rem;
}

.page-intro {
  margin-bottom: 2rem;
}

.page-intro h1 {
  font-size: clamp(1.8rem, 2.8vw, 2.5rem);
  margin: 0 0 0.75rem;
  color: var(--primary);
}

.content-card + .content-card {
  margin-top: 1.25rem;
}

.team-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.team-card {
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem;
  background: linear-gradient(180deg, #fff 0%, #f8fbff 100%);
}

.team-card h3 {
  margin-bottom: 0.2rem;
  color: var(--secondary);
}

.course-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.course-card h2 {
  margin-top: 0;
  color: var(--primary);
}

.course-card.coming-soon {
  border: 2px dashed var(--accent);
  background: linear-gradient(135deg, #fffdf7 0%, #fff7e6 100%);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form label {
  display: grid;
  gap: 0.4rem;
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 0.8rem;
  font: inherit;
  background: #fbfdff;
}

.site-footer {
  background: linear-gradient(135deg, var(--primary) 0%, #153a5e 100%);
  color: white;
  padding: 1.5rem 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.footer-social {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
}

.footer-social:hover {
  background: rgba(255, 255, 255, 0.22);
}

@media (max-width: 840px) {
  .hero-content,
  .split-grid,
  .contact-layout,
  .stats-grid,
  .team-grid,
  .course-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .nav-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .hero {
    padding-top: 2rem;
  }
}