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

:root {
  --bg:        #0a1628;
  --bg-card:   #111d33;
  --bg-dark:   #070f1c;
  --bg-accent: #0d1f3c;
  --text:      #e2e8f0;
  --text-dim:  #94a3b8;
  --gold:      #fbbf24;
  --green:     #34d399;
  --blue:      #60a5fa;
  --border:    #1e293b;
  --radius:    12px;
  --radius-sm: 8px;
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }

code { font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace; font-size: 0.9em; }

/* ── Nav ─────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 22, 40, 0.85);
  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;
}
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--text-dim); font-size: 14px; font-weight: 500; text-decoration: none; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; transition: 0.3s; }

/* ── Buttons ─────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 20px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 14px; text-decoration: none !important;
  transition: all 0.2s; cursor: pointer; border: none;
}
.btn-sm { padding: 6px 16px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-primary { background: var(--gold); color: #0a1628; }
.btn-primary:hover { background: #f59e0b; transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--text-dim); background: rgba(255,255,255,0.05); }

/* ── Hero ────────────────────────────────────── */
.hero {
  position: relative; padding: 160px 0 80px; text-align: center;
  overflow: hidden;
}
.hero-glow {
  position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 600px;
  background: radial-gradient(ellipse, rgba(251,191,36,0.08) 0%, rgba(52,211,153,0.04) 40%, transparent 70%);
  pointer-events: none;
}
.hero-badge {
  display: inline-block; padding: 6px 16px; border-radius: 99px;
  background: rgba(251,191,36,0.1); border: 1px solid rgba(251,191,36,0.2);
  color: var(--gold); font-size: 13px; font-weight: 600;
  margin-bottom: 24px;
}
.hero h1 { font-size: clamp(40px, 6vw, 72px); font-weight: 800; line-height: 1.1; margin-bottom: 20px; letter-spacing: -0.02em; }
.gradient-text {
  background: linear-gradient(135deg, var(--gold), var(--green));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub { font-size: 18px; color: var(--text-dim); max-width: 600px; margin: 0 auto 32px; line-height: 1.6; }
.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 48px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 48px; justify-content: center; flex-wrap: wrap; }
.stat { text-align: center; }
.stat-value { display: block; font-size: 28px; font-weight: 800; color: var(--green); }
.stat-label { font-size: 13px; color: var(--text-dim); }

/* ── Screenshot ──────────────────────────────── */
.screenshot-section { padding: 0 0 80px; }
.screenshot-img {
  max-width: 900px; margin: 0 auto; display: block;
  border-radius: var(--radius);
  box-shadow: 0 40px 80px rgba(0,0,0,0.4), 0 0 120px rgba(251,191,36,0.05);
  width: 100%;
}

/* ── Sections ────────────────────────────────── */
.section { padding: 96px 0; }
.section-dark { background: var(--bg-dark); }
.section-accent { background: var(--bg-accent); }
.section-title { font-size: clamp(28px, 4vw, 42px); font-weight: 800; margin-bottom: 16px; text-align: center; letter-spacing: -0.01em; }
.section-sub { font-size: 17px; color: var(--text-dim); text-align: center; max-width: 640px; margin: 0 auto 48px; }

/* ── Grid ────────────────────────────────────── */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ── Cards ───────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { font-size: 14px; color: var(--text-dim); line-height: 1.6; }
.card-icon { width: 48px; height: 48px; border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.card-icon.gold { background: rgba(251,191,36,0.12); color: var(--gold); }
.card-icon.green { background: rgba(52,211,153,0.12); color: var(--green); }
.card-icon.blue { background: rgba(96,165,250,0.12); color: var(--blue); }

/* ── Features ────────────────────────────────── */
.feature { padding: 24px; }
.feature h3 { font-size: 16px; margin-bottom: 8px; }
.feature p { font-size: 14px; color: var(--text-dim); }
.feat-icon { margin-right: 6px; }
.feature code { background: rgba(251,191,36,0.1); padding: 2px 6px; border-radius: 4px; color: var(--gold); font-size: 0.85em; }

/* ── Agent Kit ───────────────────────────────── */
.ak-header { text-align: center; margin-bottom: 48px; }
.ak-badge {
  display: inline-block; padding: 6px 16px; border-radius: 99px;
  background: rgba(52,211,153,0.1); border: 1px solid rgba(52,211,153,0.2);
  color: var(--green); font-size: 13px; font-weight: 600;
  margin-bottom: 16px;
}
.card-tool h4 { font-size: 14px; color: var(--text-dim); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
.tool-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tool-tag {
  display: inline-block; padding: 4px 10px; border-radius: 6px;
  background: rgba(52,211,153,0.08); border: 1px solid rgba(52,211,153,0.15);
  color: var(--green); font-family: 'SF Mono', monospace; font-size: 12px;
}
.tool-desc { font-size: 12px; color: var(--text-dim); margin-top: 8px; }
.ak-highlights { margin-top: 48px; }
.highlight h4 { color: var(--gold); font-size: 16px; margin-bottom: 8px; }
.highlight p { font-size: 14px; color: var(--text-dim); }
.grid-1-center { display: flex; justify-content: center; margin-top: 24px; }
.grid-1-center .highlight { max-width: 360px; }

.ak-compare { margin-top: 64px; }
.ak-compare h3 { text-align: center; font-size: 20px; margin-bottom: 24px; }

/* ── Tables ──────────────────────────────────── */
.table-wrap { overflow-x: auto; }
.compare-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.compare-table th {
  text-align: left; padding: 12px 16px;
  border-bottom: 2px solid var(--border);
  color: var(--text-dim); font-weight: 600; font-size: 13px;
}
.compare-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.compare-table tbody tr:hover { background: rgba(255,255,255,0.02); }
.highlight-cell { color: var(--green); font-weight: 600; }

/* ── Architecture ────────────────────────────── */
.arch-diagram { margin-bottom: 48px; }
.arch-pre {
  background: var(--bg-dark); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; overflow-x: auto;
  font-family: 'SF Mono', monospace; font-size: 13px; line-height: 1.7;
  color: var(--text-dim);
}

.tether-section { margin-top: 48px; }
.tether-section h3 { font-size: 24px; margin-bottom: 12px; text-align: center; }
.tether-section > p { text-align: center; color: var(--text-dim); margin-bottom: 24px; }
.tether-flow { margin-bottom: 32px; }
.feature-mini { padding: 16px; }
.feature-mini strong { display: block; margin-bottom: 4px; color: var(--gold); }
.feature-mini p { font-size: 13px; color: var(--text-dim); }

/* ── Code Blocks ─────────────────────────────── */
.code-block {
  background: var(--bg-dark); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; margin-top: 12px;
}
.code-header {
  padding: 8px 16px; background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
  font-size: 12px; color: var(--text-dim); font-weight: 600;
}
.code-block pre { padding: 16px; overflow-x: auto; }
.code-block code { font-size: 13px; line-height: 1.7; color: var(--text-dim); }
.code-comment { color: #4a5568; }
.code-sm pre { padding: 12px 16px; }
.code-sm code { font-size: 13px; }
.code-center { max-width: 640px; margin: 12px auto; }

/* ── Workflows ───────────────────────────────── */
.workflow { margin-bottom: 48px; }
.workflow h3 { font-size: 20px; margin-bottom: 8px; }
.workflow > p { color: var(--text-dim); font-size: 15px; margin-bottom: 12px; }

/* ── Steps ───────────────────────────────────── */
.steps { max-width: 640px; margin: 0 auto; }
.step { display: flex; gap: 20px; margin-bottom: 32px; }
.step-num {
  width: 36px; height: 36px; flex-shrink: 0;
  border-radius: 50%; background: rgba(251,191,36,0.12);
  color: var(--gold); font-weight: 800; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
}
.step-content { flex: 1; }
.step-content h4 { font-size: 16px; margin-bottom: 4px; }
.step-content p { font-size: 14px; color: var(--text-dim); margin-bottom: 8px; }

/* ── Download ────────────────────────────────── */
.download-grid { margin-bottom: 48px; }
.download-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px; text-align: center;
}
.dl-icon { color: var(--text-dim); margin-bottom: 16px; }
.download-card h3 { font-size: 20px; margin-bottom: 8px; }
.download-card p { font-size: 13px; color: var(--text-dim); margin-bottom: 20px; line-height: 1.6; }
.alt-install { text-align: center; }
.alt-install h4 { font-size: 15px; color: var(--text-dim); margin-top: 24px; margin-bottom: 8px; }

/* ── Footer ──────────────────────────────────── */
.footer {
  padding: 32px 0; border-top: 1px solid var(--border);
}
.footer-inner { display: flex; align-items: center; justify-content: space-between; }
.footer-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 15px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--text-dim); font-size: 13px; text-decoration: none; }
.footer-links a:hover { color: var(--text); }

/* ── 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: 16px 24px; gap: 16px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero { padding: 120px 0 60px; }
  .hero-stats { gap: 24px; }
  .section { padding: 64px 0; }
  .footer-inner { flex-direction: column; gap: 16px; }
  .hero-actions { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 32px; }
  .stat-value { font-size: 22px; }
  .download-card { padding: 24px; }
}