:root {
  --bg: #05060f;
  --surface: #0f1224;
  --surface-alt: #1a1e38;
  --border: #24294a;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-green: #34d399;
  --accent-purple: #a78bfa;
  --accent-cyan: #22d3ee;
  
  --font-head: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  
  --container: 1140px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--bg);
  background-image: radial-gradient(circle at 80% 0%, #171131 0%, transparent 40%), radial-gradient(circle at 20% 100%, #081a2e 0%, transparent 40%);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s, background-color 0.2s, border-color 0.2s;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  margin-top: 0;
  color: var(--text-main);
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  word-break: normal;
  overflow-wrap: break-word;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin-bottom: 1rem;
  margin-top: 3rem;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  margin-top: 2rem;
}

p {
  margin-top: 0;
  margin-bottom: 1.5rem;
  color: var(--text-muted);
  font-size: 1.125rem;
}

ul, ol {
  color: var(--text-muted);
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

strong {
  color: var(--text-main);
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--accent-green);
  color: var(--bg);
  padding: 0.75rem 1rem;
  font-weight: 700;
  z-index: 100;
  border-radius: 0.25rem;
}
.skip-link:focus {
  top: 1rem;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

header.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(5, 6, 15, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}

.brand {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand span {
  color: var(--accent-green);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-main);
}

.btn-primary {
  background: var(--accent-green);
  color: var(--bg) !important;
  padding: 0.625rem 1.5rem;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(52, 211, 153, 0.25);
}

.btn-secondary {
  background: transparent;
  color: var(--text-main) !important;
  padding: 0.625rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  transition: background 0.2s, border-color 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-secondary:hover {
  background: var(--surface);
  border-color: var(--text-muted);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  padding: 0.5rem;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 5rem;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    padding: 2rem 1.5rem;
    border-bottom: 1px solid var(--border);
    gap: 1.5rem;
  }
  .nav-links.open {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
}

.hero {
  padding: 7rem 0 5rem;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  background: rgba(167, 139, 250, 0.1);
  color: var(--accent-purple);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(167, 139, 250, 0.2);
}

.hero p {
  font-size: 1.25rem;
  max-width: 760px;
  margin: 0 auto 2.5rem;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.page-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 4rem;
  padding: 4rem 1.5rem;
}

.content-area {
  max-width: 800px;
}

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

.sidebar {
  position: sticky;
  top: 7rem;
  height: max-content;
}

@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .sidebar {
    position: relative;
    top: 0;
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 2rem;
}

.card-title {
  font-family: var(--font-head);
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-list li {
  margin-bottom: 0.5rem;
}

.nav-list a {
  display: block;
  padding: 0.6rem 1rem;
  border-radius: 0.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-list a:hover,
.nav-list a.active {
  background: var(--surface-alt);
  color: var(--text-main);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 4rem 0;
}

.gameplay-showcase {
  padding-bottom: 5rem;
}

.gameplay-copy {
  max-width: 760px;
  margin-bottom: 2rem;
}

.gameplay-gallery {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(2, minmax(0, 0.7fr));
  gap: 1.25rem;
  align-items: start;
}

.gameplay-gallery figure {
  margin: 0;
}

.gameplay-gallery img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  background: var(--surface);
}

.gameplay-gallery figcaption {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

@media (max-width: 768px) {
  .gameplay-gallery {
    grid-template-columns: 1fr 1fr;
  }

  .gameplay-gallery .feature-figure {
    grid-column: 1 / -1;
  }
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2.5rem 2rem;
  border-radius: 1.25rem;
  transition: transform 0.2s, border-color 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-purple);
}

.feature-icon {
  width: 54px;
  height: 54px;
  background: var(--surface-alt);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent-cyan);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 5rem 0 2rem;
  margin-top: 5rem;
  background: rgba(15, 18, 36, 0.5);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

.footer-heading {
  font-family: var(--font-head);
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  color: var(--text-main);
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.notice-box {
  border-left: 4px solid var(--accent-cyan);
  background: rgba(34, 211, 238, 0.05);
  padding: 1.5rem 2rem;
  border-radius: 0 0.5rem 0.5rem 0;
  margin: 2.5rem 0;
}

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

.inline-link {
  color: var(--accent-cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.inline-link:hover {
  color: var(--text-main);
}

/* Page Header */
.page-header {
  padding: 5rem 0 3rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4rem;
  background: rgba(15, 18, 36, 0.3);
}

.page-header h1 {
  margin-bottom: 1rem;
}

.page-header p {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0;
}

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