/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251,248,243,0.82);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--line);
}
.site-header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
  gap: 24px;
}
.brand-mark {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-size: 26px;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.brand-mark .logo-glyph {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--brand-500) 0%, var(--brand-700) 100%);
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  box-shadow: inset 0 -2px 4px rgba(0,0,0,0.2), 0 2px 6px rgba(151,90,179,0.35);
}
.brand-mark .logo-glyph::before {
  content: ''; position: absolute; inset: 6px;
  border-radius: 4px;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.6), transparent 60%);
}
.brand-mark .logo-glyph span {
  color: white; font-family: var(--font-sans); font-weight: 600; font-size: 14px; letter-spacing: -0.02em;
  position: relative; z-index: 1;
}
.brand-mark .brand-logo {
  height: 28px;
  width: auto;
  max-width: 130px;
  display: block;
  object-fit: contain;
}
.brand-mark .brand-logo-footer {
  height: 34px;
  max-width: 150px;
}
@media (max-width: 520px) {
  .brand-mark .brand-logo { height: 24px; max-width: 110px; }
}

.nav-primary { display: flex; align-items: center; gap: 4px; }
.nav-primary > a,
.nav-primary .nav-toggle {
  padding: 8px 14px; font-size: 14.5px; color: var(--bone-700);
  border-radius: 8px;
  transition: background 0.2s, color 0.2s;
  position: relative;
  background: none; border: 0; cursor: pointer; font-family: inherit;
  display: inline-flex; align-items: center; gap: 6px;
}
.nav-primary > a:hover,
.nav-primary .nav-toggle:hover { background: var(--panel); color: var(--ink); }
.nav-primary > a.active,
.nav-primary .nav-toggle.active { color: var(--ink); font-weight: 500; }

.nav-group { position: relative; }
.nav-group .nav-toggle svg { transition: transform 0.2s var(--ease-out); opacity: 0.6; }
.nav-group:hover .nav-toggle svg,
.nav-group:focus-within .nav-toggle svg { transform: rotate(180deg); opacity: 1; }

.nav-dropdown {
  position: absolute; top: calc(100% + 6px); left: 0;
  background: white;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-3);
  min-width: 200px;
  padding: 8px;
  display: flex; flex-direction: column; gap: 2px;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity 0.2s var(--ease-out), transform 0.2s var(--ease-out), visibility 0.2s;
  z-index: 10;
}
.nav-group:hover .nav-dropdown,
.nav-group:focus-within .nav-dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-dropdown a {
  padding: 10px 14px; font-size: 14px; color: var(--bone-700);
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.nav-dropdown a:hover { background: var(--panel); color: var(--ink); }
.nav-dropdown a.active { color: var(--brand-700); background: rgba(151,90,179,0.06); font-weight: 500; }

/* Mobile nav groups (native <details>/<summary> accordion) */
details.mobile-nav-group {
  border-bottom: 1px solid var(--line);
  padding: 0;
  margin: 0;
}
details.mobile-nav-group summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 12px;
  font-size: 22px; font-family: var(--font-display);
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.01em;
  user-select: none;
}
details.mobile-nav-group summary::-webkit-details-marker,
details.mobile-nav-group summary::marker { display: none; content: ''; }
.mobile-nav-caret {
  font-family: var(--font-sans);
  font-size: 26px;
  color: var(--bone-500);
  font-weight: 400;
  transition: transform 0.25s var(--ease-out), color 0.2s;
  line-height: 1;
}
details.mobile-nav-group[open] .mobile-nav-caret {
  transform: rotate(45deg);
  color: var(--brand-600);
}
details.mobile-nav-group > a {
  padding: 12px 24px;
  font-size: 18px;
  font-family: var(--font-display);
  color: var(--bone-700);
  border-bottom: 0;
  display: block;
}
details.mobile-nav-group > a:last-child { padding-bottom: 18px; }
details.mobile-nav-group > a:hover { color: var(--brand-700); }
details.mobile-nav-group > a.active {
  color: var(--brand-700);
  font-weight: 600;
  background: rgba(151,90,179,0.06);
  border-radius: 8px;
  margin: 0 12px;
  padding-left: 12px;
  padding-right: 12px;
}
details.mobile-nav-group.has-active > summary { color: var(--brand-700); }
.mobile-nav-links a.mobile-nav-solo.active {
  color: var(--brand-700);
  background: rgba(151,90,179,0.06);
}

.mobile-nav-links a.mobile-nav-solo {
  display: block;
  padding: 16px 12px;
  font-size: 22px; font-family: var(--font-display);
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.01em;
  border-bottom: 1px solid var(--line);
}

.nav-cta { display: flex; align-items: center; gap: 10px; }

.mobile-nav-toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.mobile-nav-toggle svg { width: 22px; height: 22px; }

@media (max-width: 880px) {
  .nav-primary { display: none; }
  .nav-cta .btn-ghost { display: none; }
  .mobile-nav-toggle { display: inline-flex; }
}

/* Mobile nav sheet */
.mobile-nav {
  position: fixed; inset: 0; z-index: 60;
  background: var(--paper);
  transform: translateX(100%); transition: transform .35s var(--ease-out);
  display: flex; flex-direction: column;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--line);
}
.mobile-nav-links { padding: 20px; display: flex; flex-direction: column; gap: 4px; }
.mobile-nav-links a {
  padding: 16px 12px; font-size: 22px; font-family: var(--font-display);
  border-bottom: 1px solid var(--line);
}
.mobile-nav-cta { padding: 20px; margin-top: auto; display: flex; flex-direction: column; gap: 10px; }

/* Footer */
.site-footer {
  background: var(--bone-900);
  color: var(--bone-200);
  padding: 96px 0 36px;
  position: relative;
  overflow: hidden;
}
.footer-hero {
  display: grid; grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  padding-bottom: 72px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-hero h2 {
  font-family: var(--font-display);
  font-size: clamp(44px, 6vw, 84px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  font-weight: 400;
  color: var(--paper);
  margin: 0;
}
.footer-hero h2 em { font-style: italic; color: var(--brand-300); }
.footer-hero-right {
  display: flex; flex-direction: column; gap: 16px;
  align-items: flex-start;
}
.footer-newsletter {
  width: 100%; background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px; padding: 6px;
  display: flex; align-items: center; gap: 6px;
}
.footer-newsletter input {
  flex: 1; background: transparent; border: 0; outline: 0;
  padding: 12px 14px; color: var(--paper); font-family: inherit; font-size: 15px;
}
.footer-newsletter input::placeholder { color: rgba(255,255,255,0.4); }
.footer-newsletter button {
  background: var(--brand-500); color: white; border: 0;
  padding: 10px 18px; border-radius: 10px; font: inherit; font-size: 14px; cursor: pointer;
  transition: background 0.2s;
}
.footer-newsletter button:hover { background: var(--brand-400); }

.footer-grid {
  display: grid; grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: 48px;
  padding: 64px 0;
}
.footer-col h4 {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(255,255,255,0.5); margin: 0 0 18px; font-weight: 500;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: rgba(255,255,255,0.78); font-size: 14.5px; transition: color 0.2s; }
.footer-col a:hover { color: var(--brand-300); }

.footer-brand-col { padding-right: 24px; }
.footer-brand-col .brand-mark { color: var(--paper); font-size: 32px; }
.footer-brand-col p { color: rgba(255,255,255,0.6); font-size: 14px; line-height: 1.6; margin: 20px 0; max-width: 320px; }

.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 36px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap; gap: 20px;
}
.footer-socials { display: flex; gap: 10px; }
.footer-socials a {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.12);
  display: inline-flex; align-items: center; justify-content: center;
  transition: background 0.2s, border-color 0.2s;
}
.footer-socials a:hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.25); }
.footer-socials svg { width: 16px; height: 16px; color: rgba(255,255,255,0.7); }

/* Giant wordmark bg */
.footer-wordmark {
  position: absolute; left: 0; right: 0; bottom: -40px;
  font-family: var(--font-display);
  font-size: clamp(120px, 22vw, 320px);
  line-height: 0.85;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,0.06);
  text-align: center;
  pointer-events: none;
  user-select: none;
}

@media (max-width: 960px) {
  .footer-hero { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand-col { grid-column: 1 / -1; padding-right: 0; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}