:root {
  --bg-dark: #0d0f12;
  --bg-card: #14171c;
  --bg-elevated: #1a1e24;
  --accent: #4ade80;
  --accent-dim: #22c55e;
  --accent-muted: rgba(74, 222, 128, 0.15);
  --text: #e8eaed;
  --text-muted: #9ca3af;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --font-sans: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 15, 18, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2.5rem;
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--text);
}

.logo:hover {
  text-decoration: none;
}

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

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

.nav-links a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-dark);
}

.btn-primary:hover {
  background: #5ef99c;
  box-shadow: 0 4px 20px rgba(74, 222, 128, 0.35);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--accent-muted);
}

.btn-sponsor {
  background: var(--accent-muted);
  color: var(--accent);
}

.btn-discord {
  background: #5865F2;
  color: #fff;
}

.nav-links .btn-discord,
.nav-links .btn-discord:hover {
  color: #fff;
}

.btn-discord:hover {
  background: #4752c4;
  box-shadow: 0 4px 20px rgba(88, 101, 242, 0.4);
}

.btn-icon {
  width: 1.25rem;
  height: 1.25rem;
  margin-right: 0.5rem;
}

.btn-sponsor:hover {
  background: rgba(74, 222, 128, 0.25);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

/* Hero */
.hero {
  padding: 4rem 2.5rem 5rem;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-elevated) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.04) inset, 0 0 80px rgba(74, 222, 128, 0.04);
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.highlight {
  color: var(--accent);
}

.hero-tagline {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin: 0 0 2rem;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero-note {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.hero-preview {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border);
}

.hero-preview img {
  display: block;
  width: 100%;
  height: auto;
}

/* Highlights */
.highlights {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  text-align: center;
}

.highlights-text {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin: 0;
}

.highlights-text .sep {
  margin: 0 0.75rem;
  color: var(--border);
  user-select: none;
}

.section-divider {
  max-width: 800px;
  margin: 0 auto 1rem;
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), var(--accent-muted), var(--border), transparent);
  opacity: 0.8;
}

/* Feature showcase */
.feature-showcase {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.feature-showcase h2 {
  font-size: 2rem;
  margin: 0 0 2.5rem;
  text-align: center;
}

.showcase-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  margin-bottom: 4rem;
}

.showcase-item:last-child {
  margin-bottom: 0;
}

.showcase-item.reverse {
  direction: rtl;
}

.showcase-item.reverse > * {
  direction: ltr;
}

.showcase-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--border);
}

.showcase-image img {
  display: block;
  width: 100%;
  height: auto;
}

.showcase-content h3 {
  font-size: 1.5rem;
  margin: 0 0 0.75rem;
}

.showcase-content p {
  color: var(--text-muted);
  margin: 0 0 0.5rem;
}

.platform-note {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--accent);
  background: var(--accent-muted);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  margin-top: 0.5rem;
}

/* Comparison */
.comparison {
  max-width: 1000px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.comparison h2 {
  font-size: 2rem;
  margin: 0 0 2.5rem;
  text-align: center;
}

.comparison-card {
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-elevated) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.comparison-table-wrap {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.comparison-table th,
.comparison-table td {
  padding: 1rem 1.25rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.comparison-table th.comparison-feature-col,
.comparison-table td.comparison-feature-col {
  text-align: left;
  font-weight: 500;
  color: var(--text);
}

.comparison-table thead th {
  background: var(--bg-dark);
  font-weight: 600;
}

.comparison-table th.comparison-app.featured {
  background: linear-gradient(180deg, rgba(74, 222, 128, 0.12) 0%, rgba(74, 222, 128, 0.06) 100%);
  border-left: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
}

.comparison-app-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.comparison-app-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  object-fit: contain;
}

.comparison-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.comparison-table td.comparison-check.featured {
  background: rgba(74, 222, 128, 0.06);
}

.comparison-table .check-yes {
  color: var(--accent);
  font-weight: 600;
}

.comparison-table .check-no {
  color: var(--text-muted);
  opacity: 0.5;
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

/* Download */
.download {
  max-width: 560px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.download-card {
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-elevated) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
}

.download-card h2 {
  font-size: 1.75rem;
  margin: 0 0 0.5rem;
}

.download-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  margin: 0 0 1.25rem;
}

.download-platforms {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.platform-badge {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-dark);
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.download-card .btn {
  width: 100%;
  margin-bottom: 1.5rem;
}

.download .linux-note {
  margin: 0;
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
  text-align: left;
}

.download .linux-note summary {
  font-size: 0.9rem;
  color: var(--text-muted);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
}

.download .linux-note summary::-webkit-details-marker {
  display: none;
}

.download .linux-note summary::before {
  content: '▸';
  font-size: 0.7rem;
  transition: transform 0.2s;
}

.download .linux-note[open] summary::before {
  transform: rotate(90deg);
}

.download .linux-note p {
  margin: 0.75rem 0 0;
  padding: 1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  background: var(--bg-dark);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}

.download .linux-note code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-elevated);
  padding: 0.2em 0.5em;
  border-radius: 4px;
}

/* Backend */
.backend {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.backend h2 {
  font-size: 2rem;
  margin: 0 0 1rem;
}

.backend p {
  color: var(--text-muted);
  margin: 0 0 1rem;
}

.code-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.5rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent);
}

.code-block code {
  white-space: pre;
}

/* Footer */
.footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration: none;
}

.copyright {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-tagline {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .showcase-item,
  .showcase-item.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    text-align: center;
  }

  .showcase-image {
    order: -1;
  }
}

@media (max-width: 600px) {
  .nav-links {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 0.75rem 0.75rem;
    font-size: 0.85rem;
  }

  .comparison-app-icon {
    width: 32px;
    height: 32px;
  }
}