/*
 * AXIS — Layout (nav, footer)
 */

/* ═══ NAV ═══ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(107, 42, 82, 0.92);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.4s, border-color 0.4s;
}

nav.scrolled {
  background: rgba(107, 42, 82, 0.96);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo-area { display: flex; align-items: center; gap: 12px; }

.brand {
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: #fff;
}

.nav-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.9);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.nav-sep { color: rgba(255, 255, 255, 0.35); font-size: 14px; user-select: none; }

.nav-links { display: flex; gap: 28px; align-items: center; }

.nav-links a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1.5px;
  background: #fff;
  border-radius: 1px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out-expo);
}

.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 22px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-display);
  text-decoration: none;
  transition: background 0.3s, transform 0.3s;
}
.nav-cta-btn:hover { background: rgba(255, 255, 255, 0.22); transform: translateY(-1px); }

.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 110;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.nav-burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.is-open span:nth-child(2) { opacity: 0; }
.nav-burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(107, 42, 82, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 99;
  padding: 16px 0 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-mobile.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
.nav-mobile a {
  display: block;
  padding: 14px 40px;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  font-family: var(--font-display);
  transition: color 0.2s, background 0.2s;
}
.nav-mobile a:hover,
.nav-mobile a:active { color: #fff; background: rgba(255, 255, 255, 0.08); }
.nav-mobile .nav-mobile-cta {
  margin: 12px 40px 0;
  display: inline-flex;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-display);
  text-decoration: none;
  transition: background 0.2s;
}
.nav-mobile .nav-mobile-cta:hover { background: rgba(255, 255, 255, 0.25); }
.nav-mobile .nav-mobile-back {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 8px;
  padding-bottom: 14px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
}

/* ═══ FOOTER ═══ */
.site-footer {
  background: var(--color-ink);
  color: var(--color-ink-inverse);
  padding: 72px 0 36px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  letter-spacing: -0.02em;
  display: block;
  margin-bottom: 16px;
}
.footer-tagline {
  font-size: 14px;
  color: rgba(246, 243, 249, 0.5);
  line-height: 1.65;
  max-width: 260px;
}
.footer-col-title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(246, 243, 249, 0.35);
  margin-bottom: 20px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(246, 243, 249, 0.6);
  text-decoration: none;
  padding: 5px 0;
  transition: color 0.3s;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(246, 243, 249, 0.35);
}
.footer-bottom .brand-footer {
  font-family: var(--font-display);
  font-weight: 700;
  color: rgba(246, 243, 249, 0.6);
  letter-spacing: -0.02em;
}

/* ═══ Layout responsive ═══ */
@media (max-width: 900px) {
  .container { padding: 0 24px; }
  .nav-inner { padding: 0 24px; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .nav-mobile { display: block; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  section { padding: 72px 0; }
}

@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

@media print {
  nav { display: none; }
}