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

:root {
  --bg: #0a0e14;
  --surface: #111827;
  --surface-2: #1a2332;
  --border: #1f2937;
  --accent: #f59e0b;
  --accent-dim: rgba(245, 158, 11, 0.12);
  --text: #f9fafb;
  --text-2: #9ca3af;
  --text-3: #6b7280;
  --green: #10b981;
  --red: #ef4444;
  --mono: 'IBM Plex Mono', 'Courier New', monospace;
  --sans: 'DM Sans', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── nav ─────────────────────────────────────────── */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 16px 32px; background: rgba(10, 14, 20, 0.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.nav-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-family: var(--mono); font-size: 15px; font-weight: 600; letter-spacing: -0.02em; display: flex; align-items: center; gap: 8px; color: var(--text); }
.nav-tag { font-family: var(--mono); font-size: 11px; padding: 3px 10px; border-radius: 20px; border: 1px solid var(--border); color: var(--text-3); letter-spacing: 0.04em; text-transform: uppercase; }

/* ── hero ─────────────────────────────────────────── */
.hero { padding: 120px 32px 80px; max-width: 1200px; margin: 0 auto; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero-eyebrow { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 12px; color: var(--accent); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 20px; }
.eyebrow-dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero-headline { font-family: var(--mono); font-size: clamp(28px, 3.5vw, 42px); font-weight: 700; line-height: 1.15; letter-spacing: -0.03em; margin-bottom: 24px; color: var(--text); }
.headline-accent { color: var(--accent); }
.hero-sub { font-size: 17px; color: var(--text-2); line-height: 1.7; margin-bottom: 40px; max-width: 480px; }
.hero-stats { display: flex; align-items: center; gap: 24px; }
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat-val { font-family: var(--mono); font-size: 22px; font-weight: 600; color: var(--text); }
.stat-label { font-size: 12px; color: var(--text-3); }
.stat-divider { width: 1px; height: 36px; background: var(--border); }

/* ── debugger window (hero visual) ────────────────── */
.hero-visual { display: flex; justify-content: flex-end; }
.debugger-window { width: 100%; max-width: 460px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; box-shadow: 0 32px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04); }
.dw-bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; background: var(--surface-2); border-bottom: 1px solid var(--border); }
.dw-dot { width: 10px; height: 10px; border-radius: 50%; }
.dw-dot.red { background: #ff5f57; }
.dw-dot.yellow { background: #febc2e; }
.dw-dot.green { background: #28c840; }
.dw-title { font-family: var(--mono); font-size: 11px; color: var(--text-3); margin-left: 8px; flex: 1; }
.dw-badge { font-family: var(--mono); font-size: 10px; padding: 2px 8px; border-radius: 4px; background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(245,158,11,0.2); }
.dw-body { padding: 16px; display: flex; flex-direction: column; gap: 16px; }
.dw-timeline { display: flex; flex-direction: column; gap: 2px; }
.trace { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 6px; font-family: var(--mono); font-size: 11px; }
.trace-done { background: rgba(16,185,129,0.06); }
.trace-active { background: var(--accent-dim); border: 1px solid rgba(245,158,11,0.2); }
.trace-marker { flex-shrink: 0; display: flex; align-items: center; }
.trace-label { flex: 1; color: var(--text-2); }
.trace-status { color: var(--text-3); }
.trace-status.ok { color: var(--green); }
.trace-status.warn { color: var(--accent); }
.trace-status.muted { color: var(--text-3); }
.dw-payload { background: var(--surface-2); border-radius: 6px; padding: 12px; border: 1px solid var(--border); }
.payload-label { font-family: var(--mono); font-size: 10px; color: var(--text-3); margin-bottom: 8px; }
.payload-code { font-family: var(--mono); font-size: 11px; line-height: 1.7; }
.p-key { color: #93c5fd; }
.p-str { color: #86efac; }
.p-num { color: var(--accent); }
.p-punc { color: var(--text-3); }
.p-bool { color: #c4b5fd; }
.dw-controls { display: flex; gap: 8px; }
.ctrl { font-family: var(--mono); font-size: 11px; padding: 5px 10px; border-radius: 5px; border: 1px solid var(--border); color: var(--text-2); cursor: pointer; }
.ctrl:hover { background: var(--surface-2); }
.ctrl.active { background: var(--accent-dim); border-color: rgba(245,158,11,0.3); color: var(--accent); }
.ctrl.muted { opacity: 0.4; }

/* ── problem section ──────────────────────────────── */
.problem { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 80px 32px; }
.problem-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.problem-header { display: flex; flex-direction: column; gap: 16px; }
.section-label { font-family: var(--mono); font-size: 11px; color: var(--accent); letter-spacing: 0.1em; text-transform: uppercase; }
.problem-title { font-family: var(--mono); font-size: clamp(22px, 2.5vw, 32px); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; color: var(--text); }
.problem-body { display: flex; flex-direction: column; gap: 16px; }
.problem-text { font-size: 16px; color: var(--text-2); line-height: 1.7; }
.problem-card { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 20px 24px; grid-column: 1 / -1; }
.problem-card-label { font-family: var(--mono); font-size: 11px; color: var(--text-3); letter-spacing: 0.06em; text-transform: uppercase; display: block; margin-bottom: 16px; }
.problem-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pp { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-2); line-height: 1.5; }
.pp-icon { flex-shrink: 0; margin-top: 2px; }

/* ── features ─────────────────────────────────────── */
.features { padding: 80px 32px; max-width: 1200px; margin: 0 auto; }
.features-inner { display: flex; flex-direction: column; gap: 48px; }
.features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.feat-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 28px; display: flex; flex-direction: column; gap: 12px; }
.feat-icon { width: 40px; height: 40px; background: var(--accent-dim); border: 1px solid rgba(245,158,11,0.2); border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.feat-title { font-family: var(--mono); font-size: 16px; font-weight: 600; color: var(--text); }
.feat-desc { font-size: 14px; color: var(--text-2); line-height: 1.65; }

/* ── debugger section ─────────────────────────────── */
.debugger-section { background: var(--surface); border-top: 1px solid var(--border); padding: 80px 32px; }
.db-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.db-content { display: flex; flex-direction: column; gap: 20px; }
.db-title { font-family: var(--mono); font-size: clamp(22px, 2.5vw, 30px); font-weight: 700; letter-spacing: -0.02em; color: var(--text); line-height: 1.2; }
.db-text { font-size: 16px; color: var(--text-2); line-height: 1.7; }
.demo-window { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.demo-bar { padding: 10px 16px; background: var(--surface-2); border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
.demo-prompt { font-family: var(--mono); font-size: 12px; }
.demo-prompt-user { color: var(--green); }
.demo-prompt-host { color: var(--text-3); }
.demo-prompt-path { color: var(--text-2); }
.demo-cmd { font-family: var(--mono); font-size: 12px; color: var(--text); margin-left: 4px; }
.demo-output { padding: 16px 20px; }
.demo-code { font-family: var(--mono); font-size: 12px; line-height: 1.8; color: var(--text-2); }
.demo-ok { color: var(--green); }
.demo-warn { color: var(--accent); }
.demo-accent { color: var(--accent); font-weight: 600; }
.demo-muted { color: var(--text-3); }
.demo-cursor { color: var(--accent); }
.demo-cta-row { display: flex; justify-content: center; margin-top: 12px; }
.demo-badge { font-family: var(--mono); font-size: 11px; display: flex; align-items: center; gap: 6px; color: var(--text-3); padding: 6px 14px; border: 1px solid var(--border); border-radius: 20px; }

/* ── integrations ─────────────────────────────────── */
.integrations { padding: 80px 32px; max-width: 1200px; margin: 0 auto; }
.int-inner { display: flex; flex-direction: column; gap: 32px; }
.int-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.int-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 20px; display: flex; flex-direction: column; gap: 4px; }
.int-logo { font-size: 20px; color: var(--accent); margin-bottom: 4px; }
.int-name { font-family: var(--mono); font-size: 14px; font-weight: 600; color: var(--text); }
.int-role { font-size: 13px; color: var(--text-3); }
.int-more { border-style: dashed; justify-content: center; }
.int-more .int-name { color: var(--text-3); }
.int-note { font-size: 13px; color: var(--text-3); line-height: 1.6; text-align: center; }

/* ── closing ─────────────────────────────────────── */
.closing { padding: 100px 32px; background: var(--surface); border-top: 1px solid var(--border); }
.closing-inner { max-width: 800px; margin: 0 auto; text-align: center; display: flex; flex-direction: column; gap: 24px; }
.closing-headline { font-family: var(--mono); font-size: clamp(24px, 3vw, 40px); font-weight: 700; letter-spacing: -0.03em; line-height: 1.15; color: var(--text); }
.closing-sub { font-size: 17px; color: var(--text-2); line-height: 1.7; max-width: 560px; margin: 0 auto; }
.closing-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.tag { font-family: var(--mono); font-size: 12px; padding: 5px 12px; border-radius: 20px; border: 1px solid var(--border); color: var(--text-3); }

/* ── footer ──────────────────────────────────────── */
.footer { padding: 28px 32px; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.footer-logo { font-family: var(--mono); font-size: 13px; font-weight: 600; color: var(--text-2); display: flex; align-items: center; gap: 8px; }
.footer-note { font-size: 13px; color: var(--text-3); }

/* ── responsive ───────────────────────────────────── */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { justify-content: flex-start; }
  .debugger-window { max-width: 100%; }
  .problem-inner { grid-template-columns: 1fr; }
  .problem-points { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .db-inner { grid-template-columns: 1fr; }
  .int-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}
@media (max-width: 600px) {
  .nav { padding: 12px 20px; }
  .hero { padding: 100px 20px 60px; }
  .problem, .features, .integrations, .closing { padding: 60px 20px; }
  .db-inner, .debugger-section { padding: 60px 20px; }
  .int-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
}