:root {
  color-scheme: light;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --ink: #1e293b;
  --muted: #64748b;
  --surface: #fff;
  --background: #f8fafc;
  --border: #e2e8f0;
  --shadow: 0 12px 32px rgba(15, 23, 42, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--background);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }

.site-header { background: var(--surface); box-shadow: var(--shadow); }
.contact-strip { padding: 8px 0; color: #fff; background: linear-gradient(110deg, #1e3a8a, var(--primary)); font-size: .9rem; }
.contact-strip .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.contact-strip a:hover { text-decoration: underline; }
.navbar { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand img { width: 170px; height: 54px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 24px; margin: 0; padding: 0; list-style: none; }
.nav-links a { font-weight: 650; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--primary); }
.menu-toggle { display: none; border: 0; padding: 8px 10px; background: transparent; color: var(--ink); font-size: 1.4rem; cursor: pointer; }

.page-hero { padding: 64px 0; color: #fff; background: linear-gradient(120deg, #10275c, #2563eb); }
.page-hero p { max-width: 700px; margin: 12px 0 0; color: rgba(255,255,255,.88); font-size: 1.08rem; }
.eyebrow { color: #bfdbfe; font-size: .82rem; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.2; }
h1 { margin: 10px 0; font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { margin: 0 0 12px; font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { margin: 0 0 8px; }
p { color: var(--muted); }
.content-section { padding: 56px 0; }
.section-heading { margin-bottom: 24px; }
.course-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(245px, 1fr)); gap: 22px; }
.course-card, .content-card, .contact-card { overflow: hidden; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); box-shadow: var(--shadow); }
.course-card { display: flex; flex-direction: column; }
.course-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #eff6ff;
}
.course-card-body { display: flex; flex: 1; flex-direction: column; align-items: flex-start; padding: 20px; }
.course-card-body h2 {
  display: flex;
  min-height: 2.5em;
  align-items: center;
  align-self: stretch;
  justify-content: center;
  margin: 0 0 10px;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  text-align: center;
}
.course-card-body p { flex: 1; margin: 4px 0 18px; }
.content-card { padding: 28px; }
.course-enquiry { margin-top: 20px; }
.subsection-heading { margin-top: 32px; }
.course-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(260px, .8fr); gap: 28px; align-items: start; }
.course-cover {
  width: 100%;
  max-height: 360px;
  border-radius: 14px;
  object-fit: contain;
  background: #eff6ff;
  box-shadow: var(--shadow);
}
.topic-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px 24px; margin: 16px 0 0; padding-left: 22px; color: var(--muted); }
.topic-list li::marker { color: var(--primary); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 8px; padding: 11px 18px; color: #fff; background: var(--primary); font: inherit; font-weight: 700; cursor: pointer; }
.button:hover { background: var(--primary-dark); }
.button-outline { border: 1px solid var(--primary); color: var(--primary); background: transparent; }
.button-outline:hover { color: #fff; background: var(--primary); }
.page-hero .button-outline { border-color: #bfdbfe; color: #fff; }
.page-hero .button-outline:hover { color: var(--primary); background: #fff; }
.button-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.contact-card { padding: 24px; }
.contact-card a { color: var(--primary); overflow-wrap: anywhere; }
.form-grid { display: grid; gap: 16px; }
.form-grid label { display: grid; gap: 6px; font-weight: 650; }
.form-grid input, .form-grid textarea, .form-grid select { width: 100%; border: 1px solid #cbd5e1; border-radius: 8px; padding: 11px 12px; color: var(--ink); background: #fff; font: inherit; }
.form-grid input:focus, .form-grid textarea:focus, .form-grid select:focus { outline: 3px solid rgba(37,99,235,.16); border-color: var(--primary); }
.form-grid textarea { min-height: 140px; resize: vertical; }
.form-note { margin: 0; font-size: .9rem; }
.site-footer { margin-top: 40px; padding: 44px 0 28px; color: #cbd5e1; background: #0f172a; }
.site-footer .footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; }
.site-footer .footer-column h3 { margin: 0 0 12px; color: #fff; font-size: 1.15rem; }
.site-footer .footer-column p { color: #cbd5e1; }
.site-footer .footer-links { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; }
.site-footer .footer-links a { color: #cbd5e1; }
.site-footer .footer-links li { overflow-wrap: anywhere; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer .social-links { display: flex; gap: 12px; margin-top: 20px; }
.site-footer .social-links a { display: flex; width: 40px; height: 40px; align-items: center; justify-content: center; border-radius: 50%; color: #fff; background: rgba(255,255,255,.1); }
.site-footer .social-links a:hover { background: var(--primary); }
.site-footer .copyright { margin-top: 30px; border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px; text-align: center; }
.site-footer .copyright p { margin: 0; color: #94a3b8; font-size: .9rem; }

@media (max-width: 760px) {
  .container { width: min(100% - 32px, 620px); }
  .navbar { min-height: 70px; }
  .menu-toggle { display: block; }
  .nav-links { display: none; position: absolute; z-index: 3; inset: 70px 0 auto; align-items: stretch; gap: 0; padding: 8px 20px 16px; background: #fff; box-shadow: var(--shadow); }
  .nav-links.is-open { display: flex; flex-direction: column; }
  .nav-links li { border-top: 1px solid var(--border); }
  .nav-links a { display: block; padding: 12px 0; }
  .page-hero { padding: 48px 0; }
  .content-section { padding: 40px 0; }
  .course-layout, .contact-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}