:root {
  --bg: #060609;
  --bg2: #0a0a10;
  --bg3: #0e0e18;
  --bg-card: #0c0c14;
  --fg: #e8e8e8;
  --fg-dim: #888899;
  --fg-muted: #555566;
  --accent: #00ff88;
  --accent-dim: rgba(0, 255, 136, 0.08);
  --accent-glow: rgba(0, 255, 136, 0.15);
  --blue: #5b8fff;
  --amber: #ffb800;
  --red: #ff4466;

  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;

  --terminal-bg: #080810;
  --terminal-chrome: #101018;
}

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

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

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 0 60px;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, black 0%, transparent 70%);
}

.hero-bg-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(0,255,136,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  width: 100%;
}

/* Terminal window */
.terminal-window {
  background: var(--terminal-bg);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 0 60px rgba(0,0,0,0.8), 0 0 0 1px rgba(0,255,136,0.05), inset 0 1px 0 rgba(255,255,255,0.04);
}

.terminal-chrome {
  background: var(--terminal-chrome);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.chrome-dot { width: 10px; height: 10px; border-radius: 50%; display: block; }
.chrome-dot:first-child { background: #ff5f57; }
.chrome-dot:nth-child(2) { background: #febc2e; }
.chrome-dot:nth-child(3) { background: #28c840; }

.chrome-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  margin-left: 6px;
}

.chrome-badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--accent);
  letter-spacing: 0.08em;
  background: var(--accent-dim);
  border: 1px solid rgba(0,255,136,0.2);
  padding: 2px 6px;
  border-radius: 4px;
}

.terminal-body {
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

/* Trace rows */
.trace-row {
  display: grid;
  grid-template-columns: 52px 48px 1fr;
  gap: 12px;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  animation: trace-appear 0.5s ease-out both;
}

.trace-row:nth-child(1)  { animation-delay: 0.05s; }
.trace-row:nth-child(2)  { animation-delay: 0.10s; }
.trace-row:nth-child(3)  { animation-delay: 0.15s; }
.trace-row:nth-child(4)  { animation-delay: 0.20s; }
.trace-row:nth-child(5)  { animation-delay: 0.25s; }
.trace-row:nth-child(6)  { animation-delay: 0.30s; }
.trace-row:nth-child(7)  { animation-delay: 0.35s; }
.trace-row:nth-child(8)  { animation-delay: 0.40s; }
.trace-row:nth-child(9)  { animation-delay: 0.45s; }
.trace-row:nth-child(10) { animation-delay: 0.50s; }
.trace-row:nth-child(11) { animation-delay: 0.55s; }
.trace-row:nth-child(12) { animation-delay: 0.60s; }
.trace-row:nth-child(13) { animation-delay: 0.65s; }
.trace-row:nth-child(14) { animation-delay: 0.70s; }

@keyframes trace-appear {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.trace-time {
  color: var(--fg-muted);
  font-size: 10px;
  white-space: nowrap;
  padding-top: 2px;
}

.trace-tag {
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 1px 5px;
  border-radius: 3px;
  text-align: center;
  white-space: nowrap;
}

.trace-user  .trace-tag { background: rgba(232,232,255,0.12); color: #c8c8ff; }
.trace-think .trace-tag { background: rgba(136,136,170,0.12); color: #8888aa; }
.trace-agent .trace-tag { background: rgba(255,255,255,0.08); color: #ccccdd; }
.trace-tool  .trace-tag { background: rgba(0,255,136,0.1); color: var(--accent); }
.trace-result .trace-tag { background: rgba(136,136,153,0.12); color: #888899; }

.trace-content { color: var(--fg); font-size: 11.5px; }
.trace-content.dim { color: var(--fg-dim); }
.trace-row.error .trace-content { color: var(--red); }
.trace-row.success .trace-content { color: var(--accent); }
.trace-tool-name { color: var(--accent); font-size: 11px; }

/* Hero text */
.hero-text-col { display: flex; flex-direction: column; gap: 24px; }

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.eyebrow-dash { color: var(--fg-muted); }

.hero-headline {
  font-family: var(--font-mono);
  font-size: clamp(32px, 4vw, 50px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.hero-sub {
  font-size: 15px;
  color: var(--fg-dim);
  line-height: 1.75;
}

.hero-install-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.install-cmd {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid rgba(0,255,136,0.15);
  display: inline-block;
}

.or-divider {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
}

.install-alt {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-dim);
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
}

.meta-sep { color: var(--fg-muted); opacity: 0.4; }

/* FEATURES */
.features {
  padding: 120px 0;
  background: var(--bg);
}

.features-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 64px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 12px;
  overflow: hidden;
}

.feature-card {
  background: var(--bg-card);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: background 0.2s ease;
}

.feature-card:hover { background: #0f0f1a; }

.feature-icon { color: var(--accent); width: 22px; height: 22px; }

.feature-title {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.01em;
}

.feature-desc {
  font-size: 14px;
  color: var(--fg-dim);
  line-height: 1.65;
}

/* REPLAY */
.replay-section {
  padding: 120px 0;
  background: var(--bg2);
  border-top: 1px solid rgba(255,255,255,0.03);
}

.replay-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.replay-desc {
  font-size: 15px;
  color: var(--fg-dim);
  line-height: 1.8;
  margin-bottom: 28px;
}

.share-link-demo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  padding: 12px 16px;
  border-radius: 8px;
  width: fit-content;
}

.share-prefix { color: var(--fg-muted); }
.share-id { color: var(--accent); font-weight: 500; }
.share-copy {
  margin-left: auto;
  font-size: 10px;
  color: var(--fg-muted);
  background: rgba(255,255,255,0.05);
  padding: 3px 8px;
  border-radius: 4px;
}

/* Browser mock */
.browser-mock {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  overflow: hidden;
}

.browser-chrome {
  background: var(--terminal-chrome);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.browser-dots { display: flex; gap: 6px; }
.browser-dots span { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,0.08); }
.browser-dots span:first-child { background: #ff5f57; }
.browser-dots span:nth-child(2) { background: #febc2e; }
.browser-dots span:nth-child(3) { background: #28c840; }

.browser-url {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-muted);
  background: rgba(255,255,255,0.04);
  padding: 4px 10px;
  border-radius: 5px;
}

.browser-body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.replay-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.replay-run-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 2px 7px;
  border-radius: 4px;
}

.replay-run-id {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
}

.replay-trace-mini {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.replay-row {
  display: grid;
  grid-template-columns: 48px 44px 1fr;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.6;
  padding: 3px 0;
}

.replay-row.highlight-err {
  background: rgba(255,68,102,0.06);
  border-radius: 3px;
  padding: 3px 6px;
  margin: 0 -6px;
}

.r-time { color: var(--fg-muted); }
.r-tag { color: var(--fg-muted); font-size: 9px; letter-spacing: 0.05em; }
.r-text { color: var(--fg); }
.r-tool { color: var(--accent); }

.replay-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.replay-users {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-muted);
}

.replay-export {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
}

/* COMPARE */
.compare-section {
  padding: 120px 0;
  background: var(--bg);
  border-top: 1px solid rgba(255,255,255,0.03);
}

.compare-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.diff-window {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  overflow: hidden;
}

.diff-header {
  background: var(--terminal-chrome);
  padding: 12px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.diff-title { font-family: var(--font-mono); font-size: 11px; color: var(--fg); }
.diff-meta { font-family: var(--font-mono); font-size: 10px; color: var(--fg-muted); }

.diff-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.diff-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.diff-run { display: flex; flex-direction: column; gap: 4px; }

.diff-run-label {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 4px;
  width: fit-content;
}

.diff-run-a .diff-run-label { background: rgba(255,68,102,0.1); color: var(--red); }
.diff-run-b .diff-run-label { background: var(--accent-dim); color: var(--accent); }

.diff-run-content {
  display: grid;
  grid-template-columns: 44px 40px 1fr;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.6;
  padding: 5px 8px;
  border-radius: 5px;
  background: rgba(255,255,255,0.02);
}

.diff-run-content.highlight-bad { border-left: 2px solid var(--red); }
.diff-run-content.highlight-good { border-left: 2px solid var(--accent); }

.d-time { color: var(--fg-muted); font-size: 9px; }
.d-tag { color: var(--fg-muted); font-size: 9px; letter-spacing: 0.05em; }
.d-text { color: var(--fg); font-size: 10.5px; }
.d-latency { color: var(--fg-muted); font-size: 9px; text-align: right; }

.diff-summary {
  background: rgba(0,255,136,0.05);
  border: 1px solid rgba(0,255,136,0.1);
  border-radius: 6px;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
  line-height: 1.6;
}

.diff-summary strong { color: var(--accent); }

.compare-desc { font-size: 15px; color: var(--fg-dim); line-height: 1.8; }

/* FOOTER */
.site-footer {
  padding: 80px 0 40px;
  background: var(--bg2);
  border-top: 1px solid rgba(255,255,255,0.04);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 80px;
  margin-bottom: 60px;
}

.install-block {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.install-line {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  background: rgba(0,255,136,0.06);
  padding: 10px 16px;
  border-radius: 6px;
  border: 1px solid rgba(0,255,136,0.1);
  display: block;
}

.footer-cta-block {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer-free {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
}

.footer-cta {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--bg);
  background: var(--accent);
  padding: 8px 18px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col { display: flex; flex-direction: column; gap: 12px; }

.footer-col-head {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.footer-link {
  font-size: 13px;
  color: var(--fg-dim);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-link:hover { color: var(--fg); }

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 40px 0;
  border-top: 1px solid rgba(255,255,255,0.04);
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
}

.footer-brand { font-weight: 600; color: var(--fg-dim); }
.footer-copy { color: var(--fg-muted); opacity: 0.5; }
.footer-built { margin-left: auto; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero { min-height: auto; padding: 60px 0 80px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .replay-inner, .compare-inner { grid-template-columns: 1fr; gap: 48px; }
  .footer-inner { grid-template-columns: 1fr; gap: 48px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
  .hero-headline { font-size: 32px; }
  .footer-bottom { flex-wrap: wrap; gap: 8px; }
  .footer-built { margin-left: 0; }
  .hero-inner, .features-inner, .replay-inner, .compare-inner, .footer-inner, .footer-bottom { padding: 0 20px; }
  .footer-bottom { padding: 24px 20px 0; }
}