:root {
  --bg: #14101F;
  --bg-alt: #1C142E;
  --bg-card: #251B3A;
  --primary: #734CD9;
  --primary-light: #9973F2;
  --primary-dark: #4C2EA6;
  --text: #FAFAFA;
  --text-secondary: #C4B5DE;
  --text-tertiary: #8A7BAA;
  --border: #2F2444;
  --success: #4ADE80;
  --max-width: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--primary-light);
  text-decoration: none;
  transition: color 0.15s;
}
a:hover { color: var(--primary); }

code, pre {
  font-family: "SF Mono", Menlo, Monaco, Consolas, monospace;
  font-size: 0.9em;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(20, 16, 31, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}

.nav-link {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

nav .nav-link:first-of-type { margin-left: auto; }

/* Hero */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 2rem 5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 2rem; }
  .hero-image { order: -1; }
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, var(--text), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 540px;
}

.install-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  overflow-x: auto;
  max-width: 540px;
}

.install-box code {
  flex: 1;
  white-space: nowrap;
  color: var(--text);
  font-size: 0.82rem;
}

.install-box .prompt {
  color: var(--success);
  user-select: none;
  margin-right: 0.4rem;
}

.copy-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  transition: background 0.15s;
  flex-shrink: 0;
}

.copy-btn:hover { background: var(--primary-light); }

.badges {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.badges img { height: 22px; }

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 25px 80px rgba(115, 76, 217, 0.25);
}

/* Sections */
section {
  padding: 5rem 2rem;
}

section h2 {
  max-width: var(--max-width);
  margin: 0 auto 3rem;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  text-align: center;
}

/* Features */
.features { background: var(--bg-alt); }

.features-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: 0 10px 40px rgba(115, 76, 217, 0.15);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  line-height: 1;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
  color: var(--text);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.55;
}

.feature-card code {
  background: var(--bg);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-size: 0.85em;
  color: var(--primary-light);
}

/* Comparison */
.comparison-table {
  max-width: var(--max-width);
  margin: 0 auto;
  overflow-x: auto;
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-alt);
  border-radius: 12px;
  overflow: hidden;
}

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

.comparison-table th {
  background: var(--bg-card);
  font-weight: 700;
  color: var(--text);
  font-size: 0.95rem;
}

.comparison-table td {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.comparison-table td:nth-child(2) {
  color: var(--primary-light);
  font-weight: 600;
}

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

/* Install steps */
.install { background: var(--bg-alt); }

.install-steps {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
}

.step h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.step pre {
  background: var(--bg);
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  margin: 0.75rem 0;
  font-size: 0.82rem;
  border: 1px solid var(--border);
}

.step pre code {
  color: var(--text);
}

.step .note {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-top: 0.5rem;
}

.step ul {
  list-style: none;
  padding: 0;
}

.step li {
  padding: 0.25rem 0;
}

.step p {
  color: var(--text-secondary);
  font-size: 0.93rem;
}

/* Screenshots */
.screenshots-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  align-items: end;
  justify-items: center;
}

.screenshots-grid figure {
  text-align: center;
}

.screenshots-grid img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.screenshots-grid figcaption {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-tertiary);
}

/* Architecture */
.architecture {
  background: var(--bg-alt);
  text-align: center;
}

.architecture p {
  max-width: 700px;
  margin: 0 auto 2rem;
  color: var(--text-secondary);
}

.architecture code {
  background: var(--bg);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  color: var(--primary-light);
}

.modules {
  max-width: 900px;
  margin: 0 auto 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}

.modules span {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  font-family: "SF Mono", Menlo, monospace;
  font-size: 0.85rem;
  color: var(--primary-light);
}

.modules span.exe {
  background: var(--primary-dark);
  color: var(--text);
  border-color: var(--primary);
}

.arch-links {
  color: var(--text-tertiary);
  font-size: 0.95rem;
}

.arch-links .dot {
  margin: 0 0.5rem;
  color: var(--text-tertiary);
}

/* Footer */
footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem 1.5rem;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto 2rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
}

@media (max-width: 700px) {
  .footer-content { grid-template-columns: 1fr; gap: 2rem; }
}

.footer-content h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: 0.75rem;
}

.footer-content a {
  display: block;
  padding: 0.2rem 0;
  font-size: 0.95rem;
}

.footer-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.4rem;
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.9rem;
}