:root {
  --primary: #00d4ff;
  --accent: #bd00ff;
  --bg: #121212;
  --surface: #0b1120;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --border-glow: rgba(0, 212, 255, 0.2);
  --header-bg: #f0f4f8;
  --header-border: rgba(15, 23, 42, 0.1);
  --header-nav: #1e293b;
  --logo-wordmark: #0b1940;
  --logo-wordmark-hover: #0c4a6e;
  --footer-fg: #1e293b;
  --footer-fg-muted: #64748b;
  --footer-border: rgba(15, 23, 42, 0.1);
  --font-logo: "Digital Dare", ui-sans-serif, system-ui, sans-serif;
}

@font-face {
  font-family: "Digital Dare";
  src: url("../fonts/Digital-Dare.otf") format("opentype"),
    url("../fonts/Digital-Dare.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  margin: 0;
  color: var(--text);
  line-height: 1.6;
  background: var(--bg);
  padding-top: 80px;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover,
a:focus {
  color: var(--primary);
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: var(--bg);
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

header {
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  gap: 48px;
}

.logo .logo-wordmark {
  font-family: var(--font-logo);
  font-size: 2.75rem;
  line-height: 1;
  letter-spacing: 0.04em;
  text-decoration: none;
  display: inline-block;
  color: var(--logo-wordmark);
  -webkit-text-fill-color: var(--logo-wordmark);
  text-transform: lowercase;
}

.logo .logo-tagline {
  display: block;
  margin-top: 3px;
  font-size: 9px;
  line-height: 1.15;
  letter-spacing: 0.08em;
  font-weight: 700;
  text-transform: uppercase;
  color: #334155;
  white-space: nowrap;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 28px;
  cursor: pointer;
  color: var(--header-nav);
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  align-items: center;
}

nav a,
.nav-dropdown-trigger {
  color: var(--header-nav);
  font-weight: 600;
  font-size: 15px;
  padding: 10px 14px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.nav-item-with-dropdown {
  position: relative;
}

.nav-mega-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 360px;
  background: #fff;
  border: 1px solid var(--header-border);
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.15);
  padding: 8px;
  z-index: 1001;
}

.nav-item-with-dropdown:hover .nav-mega-menu,
.nav-item-with-dropdown.expanded .nav-mega-menu,
.nav-item-with-dropdown:focus-within .nav-mega-menu {
  display: block;
}

.mega-menu-link {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  padding: 12px;
  border-radius: 8px;
  color: var(--header-nav);
}

.mega-menu-link:hover,
.mega-menu-link:focus {
  background: #f1f5f9;
  outline: none;
}

.mega-menu-icon {
  grid-row: span 2;
  font-size: 1.25rem;
}

.mega-menu-title {
  font-weight: 700;
  font-size: 14px;
}

.mega-menu-desc {
  grid-column: 2;
  font-size: 12px;
  color: #64748b;
  line-height: 1.4;
}

.btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 700;
  border: none;
  cursor: pointer;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
  margin-left: 12px;
}

.page-hero {
  padding: 72px 0 48px;
  text-align: center;
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  max-width: 900px;
  margin: 0 auto 20px;
  line-height: 1.15;
}

.page-hero .lead {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 32px;
}

.content-section {
  padding: 48px 0 72px;
}

.content-section h2 {
  font-size: 1.75rem;
  margin: 48px 0 16px;
  color: var(--primary);
}

.content-section h2:first-child {
  margin-top: 0;
}

.content-section p,
.content-section li {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.content-section ul {
  padding-left: 1.25rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  padding: 24px;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.faq-list {
  margin-top: 24px;
}

.faq-item {
  border: 1px solid var(--border-glow);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 16px;
  background: var(--surface);
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.related-links a {
  padding: 10px 16px;
  border: 1px solid var(--border-glow);
  border-radius: 8px;
  background: var(--surface);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.blog-card {
  background: var(--surface);
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  padding: 24px;
}

.blog-card h2 {
  font-size: 1.2rem;
  margin: 0 0 12px;
}

.blog-card p {
  color: var(--text-muted);
  margin: 0 0 16px;
}

.blog-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.article-body h2 {
  font-size: 1.5rem;
  margin: 40px 0 12px;
  color: var(--primary);
}

.article-body h3 {
  font-size: 1.15rem;
  margin: 28px 0 10px;
}

footer {
  background: var(--header-bg);
  color: var(--footer-fg);
  border-top: 1px solid var(--footer-border);
  padding: 48px 0 24px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 24px;
}

.footer-links h4 {
  margin: 0 0 12px;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  color: var(--footer-fg-muted);
  font-size: 14px;
  line-height: 2;
}

.footer-bottom {
  text-align: center;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--footer-border);
  color: var(--footer-fg-muted);
  font-size: 14px;
}

@media (max-width: 900px) {
  .menu-toggle {
    display: block;
  }

  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    padding: 16px;
  }

  nav.active {
    display: block;
  }

  nav ul {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-mega-menu {
    position: static;
    box-shadow: none;
    border: none;
    padding: 0 0 0 12px;
  }

  .nav-item-with-dropdown.expanded .nav-mega-menu {
    display: block;
  }

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

  .btn-outline {
    margin-left: 0;
    margin-top: 12px;
  }
}