/* Loventy — Layout */

/* Grid utilities */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.auto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

/* Spacing */
.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* Sections */
.section {
  padding: var(--space-16) 0;
  position: relative;
}

.section-sm {
  padding: var(--space-10) 0;
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-3xl);
  font-weight: 760;
  margin-bottom: var(--space-3);
}

.section-sub {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

.divider {
  height: 1px;
  background: var(--color-border);
  border: none;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  height: var(--header-height);
  background:
    linear-gradient(rgba(5,8,18,0.88), rgba(5,8,18,0.76)) padding-box,
    var(--aurora-border) border-box;
  border-bottom: 1px solid transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  box-shadow: 0 16px 44px rgba(0,0,0,0.34), var(--aurora-ring);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  isolation: isolate;
  contain: paint;
}

#site-nav {
  height: var(--header-height) !important;
  background:
    linear-gradient(rgba(5,8,18,0.90), rgba(5,8,18,0.78)) padding-box,
    var(--aurora-border) border-box !important;
  border-bottom: 1px solid transparent !important;
  box-shadow: 0 16px 44px rgba(0,0,0,0.34), var(--aurora-ring) !important;
  backdrop-filter: var(--blur-glass) !important;
  -webkit-backdrop-filter: var(--blur-glass) !important;
  contain: paint;
}

#main-nav-links {
  gap: var(--space-2) !important;
  padding: 5px !important;
  border: 1px solid rgba(126,233,255,0.16) !important;
  border-radius: var(--radius-full) !important;
  background: rgba(255,255,255,0.045) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 0 28px rgba(32,217,255,0.08) !important;
}

.nav-lnk,
.nav-ghost-btn,
.nav-cta-btn {
  transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition), opacity var(--transition) !important;
  transform: none !important;
}

.nav-lnk {
  border-color: rgba(255,255,255,0.08) !important;
  background: rgba(255,255,255,0.032) !important;
  color: rgba(247,244,238,0.86) !important;
}

.nav-lnk:hover,
.nav-lnk:focus-visible,
.nav-ghost-btn:hover,
.nav-ghost-btn:focus-visible {
  border-color: rgba(126,233,255,0.38) !important;
  background: linear-gradient(135deg, rgba(32,217,255,0.12), rgba(139,92,246,0.10)) !important;
  color: var(--color-text) !important;
  box-shadow: 0 0 24px rgba(32,217,255,0.12) !important;
}

.nav-cta-btn:hover,
.nav-cta-btn:focus-visible {
  transform: none !important;
  box-shadow: 0 18px 44px rgba(255,122,102,0.32), 0 0 42px rgba(32,217,255,0.20) !important;
}

.site-logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: normal;
  color: var(--color-accent-light);
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.site-logo span {
  color: var(--color-terracotta);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 5px;
  border: 1px solid rgba(126,233,255,0.16);
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.045);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 0 28px rgba(32,217,255,0.08);
}

.nav-links a {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: rgba(247,244,238,0.82);
  transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
  padding: var(--space-2) var(--space-3);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.025);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-text);
  border-color: rgba(126,233,255,0.34);
  background: linear-gradient(135deg, rgba(32,217,255,0.11), rgba(139,92,246,0.10));
  box-shadow: 0 0 22px rgba(32,217,255,0.10);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: var(--space-2);
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  top: var(--header-height);
  z-index: 400;
  background:
    var(--aurora-surface),
    rgba(5,8,18,0.97);
  flex-direction: column;
  padding: var(--space-8) var(--space-6);
  gap: var(--space-6);
  border-top: 1px solid rgba(126,233,255,0.18);
  overflow-x: clip;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu .nav-links {
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
}

.mobile-menu .nav-links a {
  font-size: var(--font-size-lg);
}

/* Footer */
.site-footer {
  background:
    radial-gradient(circle at 12% 18%, rgba(139,92,246,0.16), transparent 24rem),
    radial-gradient(circle at 85% 10%, rgba(32,217,255,0.12), transparent 22rem),
    #040712;
  color: rgba(247,244,238,0.76);
  border-top: 1px solid rgba(255,255,255,0.10);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 780;
  color: var(--color-white);
  margin-bottom: var(--space-4);
  display: block;
}

.footer-logo span {
  color: var(--color-terracotta);
}

.footer-brand-desc {
  font-size: var(--font-size-sm);
  line-height: 1.7;
  max-width: 240px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
  flex-wrap: wrap;
}

.footer-social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.5);
  transition: all var(--transition);
}

.footer-social-link:hover {
  border-color: rgba(32,217,255,0.38);
  color: var(--color-accent-light);
  background: rgba(32,217,255,0.08);
}

.footer-social-link svg {
  width: 16px;
  height: 16px;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: var(--space-4);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--color-white);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.35);
}

/* Responsive */
@media (max-width: 1500px) {
  .site-header {
    gap: var(--space-3);
  }

  .site-header .main-nav {
    display: none !important;
  }

  .site-header .nav-toggle {
    display: flex !important;
  }
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand-col {
    grid-column: 1 / -1;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }

  .site-header {
    padding: 0 var(--space-4);
  }

  .main-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .section {
    padding: var(--space-10) 0;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-4);
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }
}