/* ==========================================================================
   ATLAS BY VYLEX TECHNOLOGIES — UNIFIED WEBSITE COMMON STYLES
   Shared Master Brand System for Atlas Website Pages (About, Docs, 404)
   https://vylex.co.za
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & Master Brand Variables
   -------------------------------------------------------------------------- */
:root {
  --site-bg: #051B38;
  --site-bg-gradient: linear-gradient(135deg, #051B38 0%, #031227 100%);
  --site-surface-1: rgba(10, 46, 92, 0.45);
  --site-surface-2: rgba(13, 56, 112, 0.35);
  --site-surface-hover: rgba(18, 70, 138, 0.5);
  --site-card-bg: rgba(10, 46, 92, 0.35);
  --site-card-border: rgba(255, 255, 255, 0.09);
  --site-card-border-focus: rgba(251, 169, 25, 0.45);
  
  --site-text-primary: #F8FAFC;
  --site-text-secondary: #CBD5E1;
  --site-text-muted: #94A3B8;
  --site-text-subtle: #64748B;
  
  --site-accent: #FBA919;
  --site-accent-hover: #D97706;
  --site-accent-glow: rgba(251, 169, 25, 0.15);
  
  --site-code-bg: #020B18;
  --site-header-height: 68px;
  
  --font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --site-radius-sm: 6px;
  --site-radius-md: 10px;
  --site-radius-lg: 14px;
}

/* --------------------------------------------------------------------------
   2. Base Reset & Typography
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background-color: var(--site-bg);
  color-scheme: dark;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--site-header-height) + 1.5rem);
  -webkit-text-size-adjust: 100%;
  overscroll-behavior-y: none;
}

body {
  background: var(--site-bg-gradient);
  background-color: var(--site-bg);
  color: var(--site-text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
}

body.site-menu-locked {
  overflow: hidden;
  touch-action: none;
}

/* Accessibility: Skip link */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--site-accent);
  color: #031227;
  font-weight: 700;
  padding: 0.75rem 1.25rem;
  border-radius: var(--site-radius-sm);
  z-index: 9999;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-to-content:focus {
  top: 1rem;
  outline: 2px solid #FFFFFF;
}

/* Base Container */
.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

@media (max-width: 768px) {
  .container {
    padding: 0 1.25rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
}

/* --------------------------------------------------------------------------
   3. Unified Global Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  height: var(--site-header-height);
  background: rgba(3, 18, 39, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--site-card-border);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.site-header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  width: 100%;
}

/* Unified Logo Lockup */
.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--site-text-primary);
  user-select: none;
  font-family: var(--font-display);
}

.site-logo-symbol {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.site-logo-symbol svg {
  width: 26px;
  height: 26px;
  display: block;
  flex-shrink: 0;
}

.site-logo:hover .site-logo-symbol {
  transform: rotate(-10deg) scale(1.06);
}

.site-logo-brand {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.site-logo-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.4px;
  color: var(--site-text-primary);
  line-height: 1;
}

.site-logo-sub {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--site-text-muted);
  letter-spacing: 0.04em;
  text-transform: none;
  opacity: 0.85;
}

.site-logo-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.45rem;
  background: rgba(251, 169, 25, 0.12);
  border: 1px solid rgba(251, 169, 25, 0.3);
  border-radius: 4px;
  font-size: 0.68rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--site-accent);
  letter-spacing: 0.04em;
  margin-left: 0.15rem;
}

/* Desktop Navigation Links */
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.site-nav-link {
  color: var(--site-text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease;
  position: relative;
  padding: 0.25rem 0;
}

.site-nav-link:hover {
  color: var(--site-text-primary);
}

.site-nav-link.active {
  color: var(--site-accent);
  font-weight: 600;
}

.site-nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--site-accent);
  border-radius: 1px;
}

/* Primary CTA Button */
.site-btn-primary {
  background: var(--site-accent);
  color: #031227 !important;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.88rem;
  padding: 0.55rem 1.25rem;
  border-radius: var(--site-radius-sm);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.site-btn-primary:hover {
  background: var(--site-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(251, 169, 25, 0.25);
}

.site-btn-primary:active {
  transform: translateY(0);
}

.site-btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--site-text-primary) !important;
  border: 1px solid var(--site-card-border);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.55rem 1.25rem;
  border-radius: var(--site-radius-sm);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
  cursor: pointer;
  white-space: nowrap;
}

.site-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   4. Mobile Burger Button & Animated State
   -------------------------------------------------------------------------- */
.site-burger-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--site-radius-sm);
  cursor: pointer;
  padding: 0;
  color: var(--site-text-primary);
  position: relative;
  z-index: 1010;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.site-burger-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--site-card-border);
}

.site-burger-btn:focus-visible {
  outline: 2px solid var(--site-accent);
  outline-offset: 2px;
}

/* Animated 3-line hamburger icon */
.burger-box {
  width: 20px;
  height: 14px;
  position: relative;
  display: block;
}

.burger-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--site-text-primary);
  border-radius: 2px;
  position: absolute;
  left: 0;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease, background-color 0.2s ease;
}

.burger-line:nth-child(1) {
  top: 0;
}

.burger-line:nth-child(2) {
  top: 6px;
}

.burger-line:nth-child(3) {
  top: 12px;
}

/* Open / Active State transforms lines into an 'X' */
.site-burger-btn[aria-expanded="true"] .burger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
  background: var(--site-accent);
}

.site-burger-btn[aria-expanded="true"] .burger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.site-burger-btn[aria-expanded="true"] .burger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
  background: var(--site-accent);
}

/* --------------------------------------------------------------------------
   5. Mobile Drawer & Backdrop Overlay
   -------------------------------------------------------------------------- */
.site-backdrop-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(2, 11, 24, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 990;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.site-backdrop-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.site-mobile-drawer {
  display: none;
  position: fixed;
  top: var(--site-header-height);
  left: 0;
  right: 0;
  background: rgba(3, 18, 39, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--site-card-border);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  z-index: 995;
  padding: 1.25rem 1.5rem 2rem;
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
  max-height: calc(100vh - var(--site-header-height));
  overflow-y: auto;
}

.site-mobile-drawer.active {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer-links {
  display: flex;
  flex-direction: column;
  list-style: none;
  gap: 0.25rem;
}

.mobile-drawer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.95rem 0.5rem;
  color: var(--site-text-primary);
  text-decoration: none;
  font-size: 1.05rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color 0.15s ease, padding-left 0.15s ease;
  min-height: 48px;
}

.mobile-drawer-link:hover,
.mobile-drawer-link:focus-visible {
  color: var(--site-accent);
  padding-left: 0.75rem;
}

.mobile-drawer-link.active {
  color: var(--site-accent);
  font-weight: 700;
}

.mobile-drawer-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-drawer-actions .site-btn-primary,
.mobile-drawer-actions .site-btn-secondary {
  width: 100%;
  padding: 0.85rem;
  font-size: 0.95rem;
  min-height: 48px;
}

/* --------------------------------------------------------------------------
   6. Table Responsive Wrapper (Zero-Blowout)
   -------------------------------------------------------------------------- */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.25rem 0;
  border-radius: var(--site-radius-md);
  border: 1px solid var(--site-card-border);
  background: var(--site-surface-1);
}

.table-responsive::-webkit-scrollbar {
  height: 6px;
}

.table-responsive::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
}

.table-responsive::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}

.table-responsive::-webkit-scrollbar-thumb:hover {
  background: rgba(251, 169, 25, 0.4);
}

/* --------------------------------------------------------------------------
   7. Unified Global Footer
   -------------------------------------------------------------------------- */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--site-card-border);
  background: rgba(3, 18, 39, 0.98);
  padding: 3rem 0 calc(3rem + env(safe-area-inset-bottom, 0px));
  font-size: 0.9rem;
  color: var(--site-text-muted);
}

.site-footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.site-footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.site-footer-brand a {
  color: var(--site-accent);
  text-decoration: none;
  font-weight: 600;
}

.site-footer-brand a:hover {
  text-decoration: underline;
}

.site-footer-copy {
  font-size: 0.8rem;
  color: var(--site-text-subtle);
}

.site-footer-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.site-footer-links a {
  color: var(--site-text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-footer-links a:hover {
  color: var(--site-accent);
}

/* --------------------------------------------------------------------------
   8. Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 860px) {
  .site-nav-links {
    display: none;
  }
  
  .site-nav .site-btn-primary {
    display: none;
  }
  
  .site-burger-btn {
    display: flex;
  }
  
  .site-backdrop-overlay,
  .site-mobile-drawer {
    display: block;
  }
}

@media (max-width: 600px) {
  .site-footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .site-footer-links {
    flex-wrap: wrap;
    gap: 1rem;
  }
}