:root {
  --bg: #0a0c10;
  --bg-alt: #10131a;
  --surface: #161a23;
  --surface-border: #262c3a;
  --text: #eef1f7;
  --text-dim: #9aa3b5;
  --accent: #ff3d3d;
  --accent-2: #ffb020;
  --accent-glow: rgba(255, 61, 61, 0.35);
  --radius: 14px;
  --font-display: "Orbitron", sans-serif;
  --font-body: "Rajdhani", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

/* Header */

.site-header-fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
}

.site-header {
  background: rgba(10, 12, 16, 0.75);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--surface-border);
}

.prealpha-banner {
  background: rgba(255, 176, 32, 0.12);
  border-bottom: 1px solid rgba(255, 176, 32, 0.35);
  color: var(--accent-2);
  text-align: center;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
}

.lang-btn {
  padding: 0;
  line-height: 0;
  background: transparent;
  border: 2px solid transparent;
  border-radius: 5px;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.2s ease, border-color 0.2s ease;
}

.lang-btn:hover { opacity: 0.85; }

.lang-btn.active {
  opacity: 1;
  border-color: var(--accent);
}

.lang-btn .flag {
  display: block;
  width: 28px;
  height: 18px;
  border-radius: 3px;
  overflow: hidden;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: 1px;
  color: var(--text);
}

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

.logo.small { font-size: 18px; }

.logo-img {
  height: 56px;
  width: auto;
  display: block;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-weight: 600;
  color: var(--text-dim);
  transition: color 0.2s ease;
}

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

.nav-cta {
  padding: 10px 20px;
  background: var(--accent);
  color: #fff !important;
  border-radius: 999px;
  font-weight: 700;
}

.nav-cta:hover { background: #e13030; }

/* Hero */

.hero {
  position: relative;
  padding: 224px 0 120px;
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(255, 61, 61, 0.18), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}

.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  width: 900px;
  height: 900px;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  filter: blur(20px);
}

.hero-lines {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    115deg,
    rgba(255, 255, 255, 0.035) 0px,
    rgba(255, 255, 255, 0.035) 1px,
    transparent 1px,
    transparent 80px
  );
}

.hero-inner {
  text-align: center;
  max-width: 780px;
}

.hero-logo {
  height: 140px;
  width: auto;
  margin: 0 auto 24px;
}

.hero-badge {
  display: inline-block;
  margin: 0 0 20px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(255, 176, 32, 0.12);
  border: 1px solid rgba(255, 176, 32, 0.35);
  color: var(--accent-2);
  font-weight: 700;
  font-size: 14px;
}

.eyebrow {
  font-family: var(--font-display);
  color: var(--accent-2);
  letter-spacing: 3px;
  text-transform: uppercase;
  font-size: 13px;
  font-weight: 700;
  margin: 0 0 16px;
}

/* Maintenance page */

.hero.maintenance {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  padding: 120px 0;
}

.maintenance-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin: 0 auto 28px;
  border-radius: 16px;
  background: rgba(255, 61, 61, 0.1);
  border: 1px solid rgba(255, 61, 61, 0.3);
  color: var(--accent);
}

.maintenance-icon svg {
  width: 32px;
  height: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 76px);
  font-weight: 900;
  line-height: 1.05;
  margin: 0 0 24px;
  letter-spacing: 1px;
  background: linear-gradient(180deg, #ffffff 0%, #c9cedb 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  color: var(--text-dim);
  font-size: 20px;
  margin: 0 auto 40px;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-note {
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-dim);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  border-radius: 10px;
  padding: 14px 24px;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-ghost {
  color: var(--text);
  border: 1px solid var(--surface-border);
}

.btn-ghost:hover {
  border-color: var(--text-dim);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #c81e1e 100%);
  color: #fff;
  box-shadow: 0 10px 30px -8px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px -8px var(--accent-glow);
}

.btn-large {
  padding: 18px 32px;
}

.btn-icon {
  display: inline-flex;
  line-height: 1;
}

.btn-icon svg {
  width: 22px;
  height: 22px;
}

.btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.btn-text strong {
  font-size: 17px;
  font-family: var(--font-display);
  letter-spacing: 0.3px;
}

.btn-text small {
  font-size: 12px;
  font-weight: 600;
  opacity: 0.85;
}

/* Sections */

section {
  padding: 100px 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  text-align: center;
  margin: 0 0 56px;
}

/* Features */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: left;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

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

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  border-radius: 10px;
  background: rgba(255, 61, 61, 0.1);
  color: var(--accent);
}

.feature-icon svg {
  width: 26px;
  height: 26px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0 0 12px;
}

.feature-card p {
  color: var(--text-dim);
  font-size: 16px;
  margin: 0;
}

/* Gallery */

.gallery { background: var(--bg-alt); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.gallery-item {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  border: 1px solid var(--surface-border);
  background: var(--surface);
  overflow: hidden;
  margin: 0;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.gallery-item figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 14px;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.8), transparent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
}

/* Requirements */

.req-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 760px;
  margin: 0 auto;
}

.req-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 32px;
}

.req-card h3 {
  font-family: var(--font-display);
  margin: 0 0 20px;
  color: var(--accent-2);
}

.req-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.req-card li {
  padding: 8px 0;
  border-bottom: 1px solid var(--surface-border);
  color: var(--text-dim);
}

.req-card li:last-child { border-bottom: none; }

/* Downloads page */

.downloads-hero { padding: 224px 0 80px; }

.versions { padding-top: 20px; }

.version-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 760px;
  margin: 0 auto;
}

.version-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 28px 32px;
  transition: border-color 0.2s ease;
}

.version-card:hover { border-color: var(--accent); }

.version-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.version-heading h2 {
  font-family: var(--font-display);
  font-size: 20px;
  margin: 0;
}

.version-badge {
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(255, 176, 32, 0.12);
  border: 1px solid rgba(255, 176, 32, 0.35);
  color: var(--accent-2);
  font-weight: 700;
  font-size: 12px;
}

.version-badge.prealpha {
  background: rgba(255, 61, 61, 0.12);
  border-color: rgba(255, 61, 61, 0.35);
  color: var(--accent);
}

.version-date {
  margin: 10px 0 0;
  color: var(--text-dim);
  font-size: 14px;
}

.version-changelog {
  margin: 6px 0 0;
  color: var(--text-dim);
  font-size: 15px;
}

.version-card .btn { flex-shrink: 0; }

.versions-note {
  max-width: 760px;
  margin: 32px auto 0;
  color: var(--text-dim);
  font-size: 14px;
  text-align: center;
}

.versions-note a { color: var(--accent-2); text-decoration: underline; }

/* Download CTA */

.download-cta {
  background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%);
  text-align: center;
}

.download-cta-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  margin: 0 0 16px;
}

.download-cta-inner p {
  color: var(--text-dim);
  margin: 0 0 40px;
  font-size: 18px;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--surface-border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-dim);
  font-size: 14px;
}

/* Responsive */

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .req-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .main-nav { gap: 16px; }
  .main-nav a:not(.nav-cta) { display: none; }
  .hero { padding: 184px 0 80px; }
  .downloads-hero { padding: 184px 0 80px; }
  .feature-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
  .version-card { flex-direction: column; align-items: stretch; text-align: center; }
  .version-heading { justify-content: center; }
}