/* Layout: Header, Container, Sections, Footer and Mobile Sticky Bar */

.site-wrap {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

.container {
  width: 100%;
  max-width: var(--max-w-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--sp-4);
  padding-right: var(--sp-4);
}

@media (min-width: 640px) {
  .container {
    padding-left: var(--sp-6);
    padding-right: var(--sp-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--sp-8);
    padding-right: var(--sp-8);
  }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background-color: transparent;
  transition: background-color var(--duration-normal) var(--ease-standard),
              border-color var(--duration-normal) var(--ease-standard);
  border-bottom: 1px solid transparent;
}

.site-header.header-scrolled {
  background-color: rgba(7, 13, 25, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  min-height: 72px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  text-decoration: none;
  color: var(--tx-primary);
}

.brand-logo-img {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  display: block;
}

.brand-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--tx-primary);
}

.header-nav {
  display: none;
  align-items: center;
  gap: var(--sp-6);
}

.nav-link {
  font-size: var(--fs-sm);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 8px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

@media (min-width: 640px) {
  .header-actions {
    gap: var(--sp-3);
  }
}

@media (max-width: 768px) {
  .header-register-btn {
    display: none;
  }
}

@media (max-width: 479px) {
  .brand-title {
    display: none;
  }
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--tx-primary);
  cursor: pointer;
}

.mobile-menu-drawer {
  display: none;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--sp-4) var(--sp-4);
}

.mobile-menu-drawer.is-open {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

@media (min-width: 860px) {
  .header-nav {
    display: flex;
  }
  .mobile-nav-toggle {
    display: none;
  }
  .mobile-menu-drawer {
    display: none !important;
  }
}

/* Main Sections */
main {
  flex: 1 0 auto;
}

.section {
  padding-top: var(--sp-16);
  padding-bottom: var(--sp-16);
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--sp-24);
    padding-bottom: var(--sp-24);
  }
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--sp-12);
}

.section-eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: var(--sp-2);
}

.section-title {
  font-size: var(--fs-2xl);
  margin-bottom: var(--sp-3);
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--fs-3xl);
  }
}

.section-subtitle {
  font-size: var(--fs-md);
  color: var(--tx-muted);
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background-color: rgba(7, 13, 25, 0.95);
  padding-top: 36px;
  padding-bottom: calc(24px + 64px);
  color: var(--tx-muted);
  font-size: var(--fs-sm);
}

@media (min-width: 769px) {
  .site-footer {
    padding-top: 48px;
    padding-bottom: 32px;
  }
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-8);
}

@media (min-width: 900px) {
  .footer-inner {
    grid-template-columns: 1.25fr 2fr;
    gap: var(--sp-12);
  }
}

.footer-brand-desc {
  margin-top: var(--sp-3);
  font-size: var(--fs-sm);
  color: var(--tx-muted);
  max-width: 320px;
  line-height: var(--lh-relaxed);
}

.footer-groups-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
}

@media (min-width: 640px) {
  .footer-groups-wrap {
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: var(--sp-8);
  }
}

.footer-col-title {
  color: var(--tx-primary);
  font-weight: 700;
  margin-bottom: var(--sp-2);
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  padding: 0;
  margin: 0;
}

.footer-links-list li {
  display: flex;
}

.footer-links-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 8px;
  margin-left: -8px;
  font-size: var(--fs-sm);
}

.footer-bottom {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-start;
  text-align: left;
}

.footer-copyright {
  font-size: var(--fs-xs);
  color: var(--tx-muted);
}

/* Floating Back to Top Button */
.floating-back-to-top {
  position: fixed;
  bottom: 84px;
  right: 20px;
  z-index: 98;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--bg-surface-elevated, #1e293b);
  color: var(--accent);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

@media (min-width: 769px) {
  .floating-back-to-top {
    bottom: 24px;
    right: 24px;
  }
}

/* Mobile Sticky Action Bar on Home */
.mobile-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99;
  background-color: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-subtle);
  padding: var(--sp-3) var(--sp-4);
  padding-bottom: calc(var(--sp-3) + env(safe-area-inset-bottom));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  transform: translateY(100%);
  visibility: hidden;
  transition: transform var(--duration-normal) var(--ease-standard), visibility 0s linear var(--duration-normal);
}

.mobile-sticky-bar.is-visible {
  transform: none;
  visibility: visible;
  transition-delay: 0s;
}

@media (min-width: 769px) {
  .mobile-sticky-bar {
    display: none;
  }
}

/* Navigation Utilities for Inner Pages: Back to Home & Breadcrumb */
.back-to-home-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 4px 8px;
  margin-left: -8px;
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: var(--sp-3);
}

.breadcrumb-nav {
  margin-bottom: var(--sp-6);
}

.breadcrumb-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  margin: 0;
  font-size: var(--fs-xs);
  color: var(--tx-muted);
}

.breadcrumb-item a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 4px;
}

.breadcrumb-separator {
  color: var(--tx-muted);
  opacity: 0.5;
}

.breadcrumb-item[aria-current="page"] {
  color: var(--tx-primary);
  font-weight: 600;
}

/* Legal Page Content Styling */
.legal-content h1 {
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--tx-primary);
  margin-bottom: var(--sp-3);
}

.legal-content h2 {
  margin-top: var(--sp-8);
  margin-bottom: var(--sp-3);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--tx-primary);
}

.legal-content h3 {
  margin-top: var(--sp-6);
  margin-bottom: var(--sp-2);
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--tx-primary);
}

.legal-content p,
.legal-content ul {
  margin-bottom: var(--sp-4);
  color: var(--tx-secondary);
  line-height: var(--lh-relaxed);
  font-size: var(--fs-base);
}

.legal-content ul {
  padding-left: var(--sp-6);
}

.legal-content li {
  margin-bottom: var(--sp-2);
}