/* ── Reset & Base ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0a0a0b;
  --bg-alt: #111113;
  --surface: #18181b;
  --surface-hover: #1f1f23;
  --border: #27272a;
  --border-light: #3f3f46;
  --text: #fafafa;
  --text-secondary: #a1a1aa;
  --text-dim: #71717a;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --green: #22c55e;
  --yellow: #eab308;
  --red: #ef4444;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius: 12px;
  --radius-sm: 8px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--accent-hover);
  text-decoration: none;
  transition: color 0.2s;
}

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

ul {
  list-style: none;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--surface);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Nav ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 4px;
}

.logo:hover {
  color: var(--text);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 1px;
  transition: 0.2s;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  font-weight: 500;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8125rem;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: white;
  box-shadow: 0 0 30px var(--accent-glow);
}

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

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

/* ── Hero ── */
.hero {
  padding: 160px 0 80px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent-hover);
  background: var(--accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.25);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-sub strong {
  color: var(--text);
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

/* ── Terminal ── */
.hero-terminal,
.install-block {
  max-width: 640px;
  margin: 0 auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  text-align: left;
  background: var(--surface);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red { background: var(--red); }
.terminal-dot.yellow { background: var(--yellow); }
.terminal-dot.green { background: var(--green); }

.terminal-title {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-left: auto;
  margin-right: auto;
  font-family: var(--font);
}

.terminal-body {
  padding: 20px;
  font-family: var(--mono);
  font-size: 0.8125rem;
  line-height: 1.8;
}

.terminal-line {
  white-space: pre-wrap;
}

.terminal-line.dim {
  color: var(--text-secondary);
}

.terminal-prompt {
  color: var(--green);
  margin-right: 8px;
}

.t-green { color: var(--green); }

/* ── Sections ── */
.section {
  padding: 96px 0;
}

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

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-header p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* ── Features Grid ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: var(--border-light);
}

.feature-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  color: var(--accent-hover);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card ul {
  list-style: none;
}

.feature-card li {
  position: relative;
  padding-left: 16px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 6px;
}

.feature-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

/* ── Steps (How it works) ── */
.steps {
  max-width: 680px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 24px;
  margin-bottom: 36px;
  align-items: flex-start;
}

.step:last-child {
  margin-bottom: 0;
}

.step-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--accent-hover);
  background: var(--accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 50%;
}

.step-content h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-content p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ── Commands ── */
.commands-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.command-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.command-group h3 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.command {
  margin-bottom: 16px;
}

.command:last-child {
  margin-bottom: 0;
}

.command code {
  display: inline-block;
  font-size: 0.8125rem;
  color: var(--accent-hover);
  background: var(--accent-glow);
  border-color: rgba(99, 102, 241, 0.2);
  margin-bottom: 4px;
}

.command span {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ── Why Grid ── */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.why-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s;
}

.why-card:hover {
  border-color: var(--border-light);
}

.why-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.why-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ── Roadmap ── */
.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.roadmap-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.roadmap-heading {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.roadmap-heading.available::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.roadmap-heading.coming::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--yellow);
}

.roadmap-list li {
  position: relative;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 10px;
}

.roadmap-list li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--green);
  font-size: 0.75rem;
  font-weight: 700;
}

.coming-list li::before {
  content: '\2192';
  color: var(--yellow);
}

/* ── Security ── */
.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.security-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s;
}

.security-card:hover {
  border-color: var(--border-light);
}

.security-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 197, 94, 0.1);
  color: var(--green);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.security-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.security-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ── FAQ ── */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--surface);
  transition: border-color 0.2s;
}

.faq-item:hover {
  border-color: var(--border-light);
}

.faq-item summary {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--text-dim);
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ── Install ── */
.install-block {
  max-width: 640px;
  margin: 0 auto;
}

/* ── Docs Grid ── */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.doc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.2s;
}

.doc-card:hover {
  border-color: var(--border-light);
}

.doc-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.doc-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 16px;
}

.doc-link {
  font-size: 0.875rem;
  font-weight: 500;
}

/* ── Docs Content ── */
.docs-section {
  padding: 64px 0;
}

.docs-content {
  max-width: 720px;
  margin: 0 auto;
}

.docs-content h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.docs-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: 28px;
  margin-bottom: 12px;
}

.docs-content p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 16px;
}

.docs-content ul {
  margin-bottom: 16px;
}

.docs-content li {
  position: relative;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 8px;
}

.docs-content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

/* ── CTA ── */
.cta-section {
  text-align: center;
  padding: 96px 0;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}

.cta-section h2 {
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.cta-section p {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  margin-bottom: 32px;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  max-width: 360px;
}

.footer-brand p {
  margin-top: 12px;
  color: var(--text-dim);
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-col a:hover {
  color: var(--text);
}

.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--text-dim);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
  }

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

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .features-grid,
  .commands-grid,
  .security-grid,
  .roadmap-grid {
    grid-template-columns: 1fr;
  }

  .why-grid,
  .docs-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
  }

  .footer-links {
    gap: 40px;
  }
}