/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
  /* Colors */
  --color-bg: #050507;
  --color-bg-secondary: #0c0c10;
  --color-bg-card: rgba(255, 255, 255, 0.03);
  --color-bg-card-hover: rgba(255, 255, 255, 0.06);
  --color-text: #b0b0c0;
  --color-text-secondary: #6b6b80;
  --color-text-heading: #eeeef2;
  --color-accent: #7c6aef;
  --color-accent-2: #3b82f6;
  --color-accent-hover: #9585f5;
  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-hover: rgba(124, 106, 239, 0.4);

  /* Gradients */
  --gradient-accent: linear-gradient(135deg, #7c6aef 0%, #3b82f6 50%, #06b6d4 100%);
  --gradient-accent-subtle: linear-gradient(135deg, rgba(124, 106, 239, 0.15) 0%, rgba(59, 130, 246, 0.08) 100%);
  --gradient-text: linear-gradient(135deg, #eeeef2 0%, #7c6aef 50%, #3b82f6 100%);
  --gradient-hero-bg: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(124, 106, 239, 0.12) 0%, rgba(59, 130, 246, 0.05) 40%, transparent 70%);

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.35rem;
  --font-size-2xl: 2.25rem;
  --font-size-3xl: 3rem;
  --font-size-4xl: 3.75rem;
  --line-height-base: 1.7;
  --line-height-heading: 1.15;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;
  --space-4xl: 7rem;

  /* Layout */
  --container-max: 1080px;
  --container-padding: var(--space-lg);
  --header-height: 64px;

  /* Effects */
  --transition-fast: 150ms ease;
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --blur-glass: blur(20px);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* ============================================
   CSS Reset
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover,
a:focus-visible {
  color: var(--color-accent-hover);
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

ul {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-heading);
  line-height: var(--line-height-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* ============================================
   Skip Link
   ============================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-accent);
  color: #fff;
  padding: var(--space-sm) var(--space-md);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  z-index: 1000;
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
  color: #fff;
}

/* ============================================
   Container
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ============================================
   Header - Glassmorphism
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(5, 5, 7, 0.7);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

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

.site-logo {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-heading);
  white-space: nowrap;
  letter-spacing: -0.01em;
}

.site-logo:hover,
.site-logo:focus-visible {
  color: var(--color-accent);
}

/* ============================================
   Navigation - Mobile-first with CSS-only toggle
   ============================================ */
.nav-toggle-checkbox {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.nav-toggle-label {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  cursor: pointer;
  z-index: 110;
  border-radius: var(--radius-sm);
}

.nav-toggle-checkbox:focus-visible ~ .nav-toggle-label {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.hamburger {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-text);
  position: relative;
  transition: background-color var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 2px;
  background-color: var(--color-text);
  left: 0;
  transition: transform var(--transition-base);
}

.hamburger::before { top: -6px; }
.hamburger::after { top: 6px; }

.nav-toggle-checkbox:checked ~ .nav-toggle-label .hamburger {
  background-color: transparent;
}

.nav-toggle-checkbox:checked ~ .nav-toggle-label .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle-checkbox:checked ~ .nav-toggle-label .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

.site-nav {
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: rgba(5, 5, 7, 0.95);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-bottom: 1px solid var(--color-border);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.nav-toggle-checkbox:checked ~ .site-nav {
  max-height: 300px;
}

.site-nav ul {
  padding: var(--space-sm) 0;
}

.site-nav li {
  border-bottom: 1px solid var(--color-border);
}

.site-nav li:last-child {
  border-bottom: none;
}

.site-nav a {
  display: block;
  padding: var(--space-md) var(--container-padding);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background-color: rgba(255, 255, 255, 0.03);
  color: var(--color-text-heading);
}

.site-nav a[aria-current="page"] {
  color: var(--color-accent);
}

/* ============================================
   Main Content
   ============================================ */
main {
  flex: 1;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  padding: var(--space-4xl) 0 var(--space-3xl);
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-hero-bg);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.hero .tagline {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ============================================
   Badge / Pill
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-accent);
  background: var(--gradient-accent-subtle);
  border: 1px solid rgba(124, 106, 239, 0.2);
  border-radius: 100px;
  margin-bottom: var(--space-xl);
}

/* ============================================
   Products Section
   ============================================ */
.products {
  padding: var(--space-3xl) 0;
  position: relative;
}

.products h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-md);
  text-align: center;
}

.products .section-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.products-grid {
  display: grid;
  gap: var(--space-xl);
}

.product-card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: transform var(--transition-base), border-color var(--transition-base), background-color var(--transition-base);
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-hover);
  background: var(--color-bg-card-hover);
}

.product-card .product-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
  background: var(--gradient-accent-subtle);
  border: 1px solid rgba(124, 106, 239, 0.15);
}

.product-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-xs);
}

.product-card .product-type {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.product-card p {
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  font-size: var(--font-size-sm);
  padding: 10px 20px;
  background: var(--gradient-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.product-link:hover,
.product-link:focus-visible {
  opacity: 0.9;
  color: #fff;
  transform: translateY(-1px);
}

.product-link .arrow {
  transition: transform var(--transition-fast);
}

.product-link:hover .arrow {
  transform: translateX(3px);
}

/* ============================================
   About Section
   ============================================ */
.about {
  padding: var(--space-3xl) 0;
  position: relative;
}

.about::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(124, 106, 239, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.about .container {
  position: relative;
  z-index: 1;
}

.about h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-lg);
}

.about p {
  margin-bottom: var(--space-md);
  max-width: 680px;
  color: var(--color-text);
}

.about p:last-child {
  margin-bottom: 0;
}

/* ============================================
   Divider
   ============================================ */
.section-divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-border), transparent);
  border: none;
  margin: 0;
}

/* ============================================
   Page Content (Legal pages, Support)
   ============================================ */
.page-content {
  padding: var(--space-3xl) 0;
}

.page-content h1 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-sm);
}

.page-content .effective-date {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
}

.page-content h2 {
  font-size: var(--font-size-xl);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.page-content h3 {
  font-size: var(--font-size-lg);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.page-content p {
  margin-bottom: var(--space-md);
}

.page-content ul,
.page-content ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-xl);
}

.page-content ul {
  list-style: disc;
}

.page-content ol {
  list-style: decimal;
}

.page-content li {
  margin-bottom: var(--space-sm);
}

.page-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ============================================
   Support Page
   ============================================ */
.support-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin-top: var(--space-xl);
  max-width: 500px;
}

.support-card p {
  margin-bottom: var(--space-lg);
}

.support-card .support-email {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-base);
  font-weight: 600;
  padding: 10px 24px;
  background: var(--gradient-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.support-card .support-email:hover,
.support-card .support-email:focus-visible {
  opacity: 0.9;
  color: #fff;
  transform: translateY(-1px);
  text-decoration: none;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0;
  margin-top: auto;
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.site-footer nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-lg);
}

.site-footer nav a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.site-footer nav a:hover,
.site-footer nav a:focus-visible {
  color: var(--color-text-heading);
}

.footer-contact a {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.footer-contact a:hover {
  color: var(--color-text-heading);
}

.copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   Responsive - Tablet (768px+)
   ============================================ */
@media (min-width: 768px) {
  :root {
    --container-padding: var(--space-xl);
  }

  .nav-toggle-label {
    display: none;
  }

  .site-nav {
    position: static;
    max-height: none;
    overflow: visible;
    border-bottom: none;
    background-color: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .site-nav ul {
    display: flex;
    gap: var(--space-lg);
    padding: 0;
  }

  .site-nav li {
    border-bottom: none;
  }

  .site-nav a {
    padding: var(--space-sm) 0;
    font-size: var(--font-size-sm);
  }

  .site-nav a:hover,
  .site-nav a:focus-visible {
    background-color: transparent;
  }

  .hero {
    padding: var(--space-4xl) 0;
  }

  .hero h1 {
    font-size: var(--font-size-4xl);
  }

  .hero .tagline {
    font-size: var(--font-size-xl);
  }

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

  .site-footer .container {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .site-footer nav ul {
    margin-bottom: 0;
  }
}

/* ============================================
   Responsive - Desktop (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  :root {
    --container-padding: var(--space-2xl);
  }

  .hero {
    padding: 8rem 0 var(--space-4xl);
  }
}

/* ============================================
   Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .product-card:hover {
    transform: none;
  }

  .product-link:hover {
    transform: none;
  }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  *,
  *::before,
  *::after {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
  }

  .site-header,
  .site-footer,
  .skip-link,
  .nav-toggle-label,
  .nav-toggle-checkbox {
    display: none !important;
  }

  main {
    padding: 0;
  }

  .page-content {
    padding: 0;
  }

  a {
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.9em;
  }

  a[href^="#"]::after,
  a[href^="javascript:"]::after,
  a[href^="mailto:"]::after,
  a:not([href*="://"])::after {
    content: "";
  }

  h1, h2, h3 {
    page-break-after: avoid;
    break-after: avoid;
  }

  p, li {
    orphans: 3;
    widows: 3;
    page-break-inside: avoid;
    break-inside: avoid;
  }
}