:root {
  --navy: #0b1f3a;
  --navy-light: #14294d;
  --teal: #14b8a6;
  --teal-dark: #0d9488;
  --orange: #fa7b00;
  --bg: #f7f9fb;
  --text: #1f2937;
  --muted: #5b6b7f;
  --white: #ffffff;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(11, 31, 58, 0.08);
}

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

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

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  background: var(--navy);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: 1140px;
  margin: 0 auto;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
}
.logo span { color: var(--teal); }

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  color: #cbd5e1;
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }

.nav-cta {
  background: var(--teal);
  color: var(--navy) !important;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--teal-dark); color: var(--white) !important; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
  padding: 90px 24px 100px;
  text-align: center;
}

.hero h1 {
  font-size: 42px;
  font-weight: 800;
  max-width: 780px;
  margin: 0 auto 20px;
  line-height: 1.25;
}
.hero h1 span { color: var(--teal); }

.hero p {
  font-size: 18px;
  color: #b9c6d9;
  max-width: 620px;
  margin: 0 auto 36px;
}

.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-primary {
  background: var(--teal);
  color: var(--navy);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(20,184,166,0.35); }
.btn-outline {
  border: 1.5px solid rgba(255,255,255,0.4);
  color: var(--white);
  margin-left: 14px;
}
.btn-outline:hover { border-color: var(--white); }

/* Sections */
section { padding: 72px 24px; }
.section-label {
  color: var(--teal-dark);
  font-weight: 700;
  letter-spacing: 1px;
  font-size: 13px;
  text-transform: uppercase;
  text-align: center;
  display: block;
  margin-bottom: 10px;
}
.section-title {
  font-size: 32px;
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
}
.section-sub {
  text-align: center;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto 48px;
}

/* Course cards */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
  max-width: 1140px;
  margin: 0 auto;
}

.course-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}
.course-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(11,31,58,0.14); }

.course-banner {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
  color: var(--white);
  font-weight: 700;
  font-size: 20px;
  position: relative;
}
.banner-automation { background: radial-gradient(circle at 30% 30%, #3b2a6b, #0b0f2e 70%); }
.banner-aipm { background: linear-gradient(135deg, #0f2947, #1c3d63); }
.banner-agentic { background: radial-gradient(circle at 60% 40%, #123a5e, #05132a 75%); }

.course-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-live { background: var(--teal); border-color: var(--teal); color: var(--navy); }

.course-body {
  padding: 22px 22px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.course-body h3 { font-size: 19px; margin-bottom: 8px; }
.course-body p { color: var(--muted); font-size: 14.5px; margin-bottom: 16px; flex: 1; }

.course-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid #eef1f4;
}
.price { font-weight: 700; color: var(--navy); font-size: 17px; }
.price small { color: var(--muted); font-weight: 400; font-size: 12px; }

.pill-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.pill {
  font-size: 11px;
  background: #eef2f7;
  color: var(--navy);
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 600;
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
  max-width: 1140px;
  margin: 0 auto;
}
.feature {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
}
.feature .icon {
  width: 44px; height: 44px;
  background: rgba(20,184,166,0.12);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
  color: var(--teal-dark);
}
.feature h3 { font-size: 17px; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 14.5px; }

/* Curriculum accordion (simple, CSS only via details/summary) */
.curriculum { max-width: 820px; margin: 0 auto; }
.curriculum details {
  background: var(--white);
  border-radius: 10px;
  box-shadow: var(--shadow);
  margin-bottom: 12px;
  padding: 4px 0;
}
.curriculum summary {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 700;
  font-size: 15px;
  color: var(--navy);
  display: flex;
  justify-content: space-between;
}
.curriculum .week-body { padding: 0 20px 18px; color: var(--muted); font-size: 14.5px; }
.curriculum .week-body p { margin-bottom: 8px; }

/* CTA band */
.cta-band {
  background: var(--navy);
  color: var(--white);
  text-align: center;
  padding: 64px 24px;
}
.cta-band h2 { font-size: 28px; margin-bottom: 14px; }
.cta-band p { color: #b9c6d9; margin-bottom: 28px; }

/* Footer */
footer {
  background: #081729;
  color: #9fb0c4;
  padding: 48px 24px 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  max-width: 1140px;
  margin: 0 auto 32px;
}
.footer-grid h4 { color: var(--white); font-size: 15px; margin-bottom: 14px; }
.footer-grid li { margin-bottom: 9px; font-size: 14px; }
.footer-grid a:hover { color: var(--teal); }
.footer-bottom {
  max-width: 1140px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* Page header (inner pages) */
.page-hero {
  background: var(--navy);
  color: var(--white);
  padding: 56px 24px;
  text-align: center;
}
.page-hero h1 { font-size: 32px; font-weight: 800; }
.page-hero p { color: #b9c6d9; margin-top: 10px; }

/* Content pages (terms/privacy) */
.doc { max-width: 780px; margin: 0 auto; padding: 56px 24px; }
.doc h2 { font-size: 20px; margin: 28px 0 10px; color: var(--navy); }
.doc p, .doc li { color: var(--muted); font-size: 15px; margin-bottom: 10px; }
.doc ul { padding-left: 20px; list-style: disc; }
.doc .updated { color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.placeholder-note {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #9a3412;
  padding: 14px 18px;
  border-radius: 8px;
  font-size: 13.5px;
  margin-bottom: 28px;
}

/* Contact form */
.contact-wrap {
  max-width: 640px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px;
}
.form-row { margin-bottom: 18px; }
.form-row label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 6px; color: var(--navy); }
.form-row input, .form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid #e2e8f0;
  border-radius: 8px;
  font-size: 14.5px;
  font-family: inherit;
}
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--teal); }
.form-note { font-size: 12.5px; color: var(--muted); margin-top: 6px; }

/* About */
.about-wrap {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: start;
}
.avatar-circle {
  width: 200px; height: 200px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--navy));
  display: flex; align-items: center; justify-content: center;
  color: var(--white); font-size: 56px; font-weight: 800;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 30px; }
  .about-wrap { grid-template-columns: 1fr; text-align: center; }
  .avatar-circle { margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr; }
}