.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: saturate(1.2) blur(8px);
  background: rgba(14, 15, 18, 0.7);
  border-bottom: 1px solid var(--border);
  z-index: 10;
  -webkit-user-select: none;
  user-select: none;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.3px;
}

.nav a {
  margin-left: 1rem;
  opacity: 0.9;
}

.nav a:hover {
  opacity: 1;
}

/* Dropdown base */
.nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown > summary {
  list-style: none; /* hide default marker */
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  padding: 0.25rem 0;
}

.dropdown > summary::-webkit-details-marker {
  display: none;
}

.dropdown .caret {
  opacity: 0.8;
  transition: transform 0.15s ease;
}

.dropdown[open] .caret {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  left: 0;
  top: calc(100% + 0.5rem);
  min-width: 220px;
  background: rgba(14, 15, 18, 0.9);
  backdrop-filter: saturate(1.2) blur(8px);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 0.5rem 0.5rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  z-index: 20;
}

.dropdown-menu li {
  list-style: none;
}

.dropdown-menu a {
  display: block;
  padding: 0.5rem 0.9rem;
  color: var(--text);
  text-decoration: none;
  opacity: 0.95;
}

.dropdown-menu a:hover {
  background: rgba(255, 255, 255, 0.06);
  opacity: 1;
}

/* Close dropdown when clicking elsewhere (progressive enhancement):
   details naturally close when another opens; this keeps UI tidy on small screens */
@media (pointer: coarse) {
  .dropdown-menu {
    top: calc(100% + 0.75rem);
  }
}
.site-footer {
  margin-top: 3rem;
  border-top: 1px solid var(--border);
  background: #0d0f13;
}

.site-footer .wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1rem;
}

.site-footer a {
  color: var(--text);
  opacity: 0.9;
}

.site-footer a:hover {
  opacity: 1;
}

.copyright {
  text-align: center;
  color: var(--muted);
  padding: 1rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 700px) {
  .site-footer .wrap {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 2.4rem;
  }
}
.hero {
  text-align: center;
  padding: 20rem 0 25rem;
  margin-left: calc(-50vw + 50%); /* pulls section to full viewport width */
  margin-top: -10rem;
  width: 100vw;
  overflow-x: hidden;
  background-image: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url("/assets/img/mainhero.jpg");
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
}

.hero h1 {
  font-size: 3rem;
  margin: 0.2rem 0;
}

.lead {
  max-width: 800px;
  margin: 1rem auto 2rem;
  color: var(--text);
}

.cta {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.65rem 1rem;
  border-radius: 0.8rem;
  background: var(--accent);
  color: #001b18;
  font-weight: 700;
}

.btn.outline {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
}

.down {
  display: inline-block;
  margin-top: 2rem;
  color: var(--text);
  font-size: 2rem;
}

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

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: #0b0c0f;
}

.card-body {
  padding: 1rem;
}

.card h3 {
  margin: 0.25rem 0 0.5rem;
}

.card p {
  color: var(--muted);
  margin: 0 0 0.75rem;
}

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

.course {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem;
}

:root {
  --bg:#0e0f12;
  --text:#e8eaed;
  --muted:#b4b7bd;
  --accent:#8dbae7;
  --card:#15171c;
  --border:#23262d;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  scroll-behavior: smooth;
}

a {
  color: var(--accent);
  text-decoration: none;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
}

h2 {
  font-size: 2rem;
  margin: 2rem 0 1rem;
}

/*# sourceMappingURL=main.css.map */