/* ── HEADER ── */
.site-header {
  position: sticky; top: 0; z-index: 200;
  background: rgba(253,246,238,0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: var(--header-h);
  width: min(1140px, calc(100% - 2.5rem));
  margin-inline: auto;
}
.logo {
  display: inline-flex; align-items: center; text-decoration: none;
  min-width: 0;
}
.logo-image {
  display: block; width: min(320px, 58vw); height: auto;
  max-height: 64px; object-fit: contain;
}
.site-nav { display: flex; align-items: center; gap: 2rem; }
.site-nav ul {
  display: flex; list-style: none; gap: 1.5rem; align-items: center;
  margin: 0; padding: 0;
}
.site-nav a:not(.btn) {
  font-weight: 500; font-size: 0.9rem; color: var(--muted);
  transition: color 0.2s; text-decoration: none;
}
.site-nav a:not(.btn):hover { color: var(--primary); }
.nav-toggle {
  display: none; flex-direction: column; gap: 5px; width: 40px;
  height: 40px; align-items: center; justify-content: center;
  background: none; border: none; cursor: pointer;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--ink); border-radius: 2px;
  transition: transform 0.25s, opacity 0.2s;
}
@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed; inset: var(--header-h) 0 0 0;
    flex-direction: column; align-items: stretch;
    padding: 2rem 1.5rem; background: var(--cream);
    transform: translateY(-110%); opacity: 0; visibility: hidden;
    transition: transform 0.28s cubic-bezier(.4,0,.2,1), opacity 0.2s, visibility 0.2s;
  }
  .site-nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .site-nav ul { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .site-nav a:not(.btn) { font-size: 1.1rem; display: block; padding: 0.4rem 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ─── SECTION WRAPPER ─── */
section { padding: clamp(3.5rem, 7vw, 5.5rem) 0; }
.container {
  width: min(1140px, calc(100% - 2.5rem));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}
.section-tag {
  display: inline-block; padding: 0.3rem 0.9rem; background: var(--cream-dark);
  border: 1px solid var(--border); border-radius: 999px;
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--primary); margin-bottom: 1rem;
}
.section-title {
  font-family: var(--font-display); font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; color: var(--navy);
  margin-bottom: 1rem;
}
.section-lead {
  font-size: 1.075rem; color: var(--muted); max-width: 54ch; line-height: 1.75;
}

/* ── FOOTER ── */
footer {
  background: #080F1C;
  padding: 0px 5% 32px;
}
.footer-grid {
  max-width: 1200px; margin: 0 auto;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .t { font-size: 13px; color: rgba(255,255,255,0.45); line-height: 1.7; margin-top: 16px; }
.footer-col h4 {
  font-size: 12px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--saffron); margin-bottom: 16px;
}
.footer-col a, .footer-col p {
  display: block; font-size: 13px; color: rgba(255,255,255,0.5);
  text-decoration: none; margin-bottom: 10px; line-height: 1.6;
  transition: color 0.2s;
}
.footer-col a:hover { color: rgba(255,255,255,0.85); }
.footer-bottom {
  max-width: 1200px; margin: 28px auto 0;
  display: flex; align-items: center; justify-content: space-between;
}
.footer-bottom p { font-size: 12px; color: rgb(255, 255, 255); }
.courses-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.chip {
  background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.55); font-size: 12px; font-weight: 500;
  padding: 4px 12px; border-radius: 50px;
}