* { box-sizing: border-box; }

:root {
  --ink: #141414;
  --paper: #fbfaf6;
  --soft: #efede6;
  --line: #d8d3c8;
  --jade: #0b6f63;
  --jade-dark: #074c44;
  --red: #b64234;
  --muted: #69645c;
  --white: #ffffff;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(20, 20, 20, .08);
  background: rgba(251, 250, 246, .94);
  backdrop-filter: blur(16px);
}

.nav {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: .01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 15px;
}

.nav-links a:hover {
  color: var(--jade-dark);
}

.dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0 14px;
  margin-bottom: -14px;
}

.dropdown-trigger {
  cursor: default;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 340px;
  padding: 10px;
  display: none;
  gap: 4px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 22px 60px rgba(20, 20, 20, .14);
  z-index: 40;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  display: grid;
}

.dropdown-menu a {
  display: grid;
  gap: 3px;
  padding: 11px 12px;
  color: var(--ink);
  border-radius: 4px;
}

.dropdown-menu a:hover {
  background: var(--soft);
}

.dropdown-menu span {
  color: var(--muted);
  font-size: 13px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  border-radius: 4px;
  font-weight: 800;
}

.button.primary {
  color: var(--white);
  background: var(--jade);
  border-color: var(--jade);
}

.hero {
  color: var(--white);
  background: var(--ink);
}

.hero-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(54px, 8vw, 98px) 0;
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(360px, .8fr);
  gap: 48px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 16px;
  color: #e8c47b;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1;
}

.hero p {
  max-width: 680px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, .78);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.course-image-link {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 6px;
}

.course-image-link img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.image-caption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  padding: 12px 14px;
  color: var(--white);
  background: rgba(7, 76, 68, .92);
  border-radius: 4px;
  font-weight: 900;
}

section {
  padding: clamp(56px, 7vw, 88px) 0;
}

.wrap {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(260px, .55fr);
  gap: 40px;
  align-items: end;
  margin-bottom: 32px;
}

h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.06;
}

.lead,
.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  padding: 26px;
  min-height: 208px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.card strong {
  display: block;
  margin-bottom: 22px;
  color: var(--red);
  font-size: 13px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 21px;
  line-height: 1.18;
}

.card p,
.card li {
  color: var(--muted);
}

.band {
  background: var(--soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 20px;
}

.cta {
  color: var(--white);
  background: var(--jade-dark);
}

.cta .lead {
  color: rgba(255, 255, 255, .8);
}

footer {
  padding: 42px 0;
  color: #cbd5e1;
  background: #0f172a;
  border-top: 1px solid rgba(255, 255, 255, .14);
}

.footer-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.3fr .9fr .9fr;
  gap: 36px;
  font-size: 14px;
}

.footer-brand,
.footer-column {
  display: grid;
  align-content: start;
  gap: 12px;
}

.footer-brand {
  max-width: 360px;
}

.footer-brand strong {
  color: var(--white);
  font-size: 18px;
}

.footer-brand p,
.footer-column p {
  margin: 0;
  color: #cbd5e1;
  line-height: 1.65;
}

.footer-link,
.footer-column a {
  color: #f8fafc;
  text-decoration: none;
}

.footer-link {
  font-weight: 700;
}

.footer-column a {
  color: #cbd5e1;
}

.footer-column a:hover,
.footer-link:hover {
  color: var(--gold);
}

.social-links {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.social-link {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: #0f172a;
  background: #f8fafc;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
  transition: transform .2s ease, background .2s ease;
}

.social-link svg {
  width: 20px;
  height: 20px;
  display: block;
  fill: currentColor;
}

.social-link:hover {
  color: #0f172a;
  background: var(--gold);
  transform: translateY(-2px);
}

@media (max-width: 900px) {
  .nav {
    flex-wrap: wrap;
    padding: 12px 0;
  }
  .nav-links {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 10px 14px;
  }
  .hero-inner,
  .section-head {
    grid-template-columns: 1fr;
  }
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .nav,
  .wrap,
  .hero-inner,
  .footer-inner {
    width: min(100% - 28px, 1180px);
  }
  .nav {
    gap: 12px;
  }
  .brand {
    font-size: 18px;
  }
  .nav-links {
    width: auto;
    gap: 10px;
    font-size: 14px;
  }
  .nav-links > a:not(.button):not(.primary) {
    display: none;
  }
  .dropdown {
    min-height: 40px;
    padding: 0;
    margin-bottom: 0;
  }
  .dropdown-menu {
    left: auto;
    right: 0;
    width: min(92vw, 340px);
    max-height: 70vh;
    overflow-y: auto;
  }
  .button {
    min-height: 40px;
    padding: 0 14px;
  }
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .grid {
    grid-template-columns: 1fr;
  }
  .hero-actions {
    display: grid;
  }
}