:root {
  --bg: #0d1117;
  --bg-alt: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #00ff41;
  --accent-dim: rgba(0, 255, 65, 0.15);
  --danger: #f85149;
  --radius: 10px;
  --maxw: 1100px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.15s;
}

a:hover { opacity: 0.75; }

code {
  font-family: 'Consolas', 'Cascadia Code', monospace;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--accent);
}

pre {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 16px;
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: 'Consolas', 'Cascadia Code', monospace;
  font-size: 0.9em;
  color: var(--text);
}

pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--text);
}

.brand-logo { font-size: 1.6rem; }

.brand-name { color: var(--accent); letter-spacing: 0.5px; }

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  opacity: 1;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1.2rem;
}

/* ---------- Layout ---------- */
.page {
  flex: 1;
  max-width: var(--maxw);
  width: 100%;
  margin: 0 auto;
  padding: 48px 24px;
}

.page h1 {
  font-size: 2.2rem;
  color: var(--accent);
  margin-bottom: 12px;
}

.page .subtitle {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 36px;
}

.section {
  margin-bottom: 48px;
}

.section h2 {
  font-size: 1.4rem;
  color: var(--text);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* ---------- Hero ---------- */
.hero {
  text-align: center;
  padding: 80px 24px 60px;
  border-bottom: 1px solid var(--border);
}

.hero-logo {
  font-size: 5rem;
  margin-bottom: 12px;
  filter: drop-shadow(0 0 24px var(--accent-dim));
}

.hero-title {
  font-size: 3.6rem;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.hero-tagline {
  color: var(--muted);
  font-size: 1.2rem;
  margin-bottom: 32px;
}

.hero-tagline .sep { color: var(--border); margin: 0 8px; }

.cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  transition: transform 0.15s, border-color 0.15s, background 0.15s;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  opacity: 1;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: #00cc33;
  border-color: #00cc33;
}

/* ---------- Cards grid ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.15s, transform 0.15s;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.card-title {
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 6px;
}

.card-desc {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---------- Why ---------- */
.why {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-top: 40px;
}

.why h2 {
  border: 0;
  margin-bottom: 12px;
}

.why p {
  color: var(--muted);
  margin-bottom: 12px;
}

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

/* ---------- Stats row ---------- */
.stats-row {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  margin-bottom: 28px;
  background: var(--bg-alt);
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  font-family: 'Consolas', 'Cascadia Code', monospace;
  font-size: 0.95rem;
  box-shadow: 0 0 0 4px var(--accent-dim);
}

.stats-row .dot {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
  animation: blink 1.5s step-end infinite;
}

@keyframes blink {
  0%, 60%, 100% { opacity: 1; }
  70% { opacity: 0.2; }
}

/* ---------- Module cards ---------- */
.modules {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.module {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  transition: border-color 0.15s, transform 0.15s;
}

.module:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.module-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.module-title {
  color: var(--accent);
  font-size: 1.05rem;
  font-weight: 600;
}

.badge-multi {
  font-size: 0.7rem;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-weight: 500;
  text-transform: lowercase;
  letter-spacing: 0.3px;
}

.module-desc {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.subtools {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.6;
}

.subtools strong {
  color: var(--accent);
  font-weight: 600;
}

/* ---------- Feature categories ---------- */
.category {
  margin-bottom: 32px;
}

.category h3 {
  color: var(--accent);
  font-size: 1.2rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.category-icon { font-size: 1.4rem; }

.tool-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px 16px;
}

.tool-list li {
  padding: 8px 12px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
}

.tool-list li::before {
  content: "▸ ";
  color: var(--accent);
}

/* ---------- Releases ---------- */
.release {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.release.latest {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-dim);
}

.release-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.release-version {
  font-size: 1.4rem;
  color: var(--accent);
  font-weight: 600;
}

.release-badge {
  background: var(--accent);
  color: #000;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.release-meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.release-notes {
  color: var(--text);
  margin: 12px 0;
  white-space: pre-wrap;
}

.release-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.release-hash {
  color: var(--muted);
  font-size: 0.8rem;
  font-family: 'Consolas', monospace;
  word-break: break-all;
}

.status-msg {
  text-align: center;
  color: var(--muted);
  padding: 40px 20px;
  font-size: 1rem;
}

.status-msg.error {
  color: var(--danger);
}

/* ---------- Steps ---------- */
.step {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  position: relative;
  padding-left: 64px;
}

.step-num {
  position: absolute;
  left: 20px;
  top: 20px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step h3 {
  color: var(--text);
  margin-bottom: 6px;
}

.step p { color: var(--muted); }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: rgba(0, 255, 65, 0.05);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tr:last-child td { border-bottom: 0; }

tr:hover td { background: rgba(255, 255, 255, 0.02); }

/* ---------- About ---------- */
.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 16px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.95rem;
}

.chip:hover {
  border-color: var(--accent);
  opacity: 1;
}

.license-box {
  background: var(--bg-alt);
  border-left: 3px solid var(--accent);
  padding: 16px 20px;
  border-radius: 4px;
  margin-top: 16px;
  color: var(--muted);
}

.license-box strong { color: var(--text); }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 8px;
  flex-wrap: wrap;
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .nav-toggle { display: block; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    gap: 10px;
  }

  .nav-links.open { display: flex; }

  .hero-title { font-size: 2.6rem; }
  .hero-logo { font-size: 4rem; }
  .page h1 { font-size: 1.8rem; }

  .step { padding-left: 56px; }
}