:root {
  --bg: #0b0c10;
  --panel: #14151c;
  --panel-2: #1b1d26;
  --border: #262833;
  --text: #e9e9ee;
  --muted: #8b8d9a;
  --accent: #ff4d4d;
  --accent-dim: #ff4d4d22;
  --green: #4ade80;
  --yellow: #fbbf24;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

.wire-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 400px at 50% -8%, var(--accent-dim), transparent 70%),
    linear-gradient(transparent 0, transparent calc(100% - 1px), #ffffff08 100%);
  background-size: 100% 100%, 100% 88px;
}

main, .nav, .footer { position: relative; z-index: 1; }

/* ---------- Nav ---------- */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 28px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-dim), 14px 0 0 -6px var(--accent), -14px 0 0 -6px var(--accent);
}
.brand-name { font-family: var(--mono); font-weight: 600; letter-spacing: -0.02em; }
.nav-links { display: flex; gap: 26px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 14px; transition: color .15s; }
.nav-links a:hover { color: var(--text); }

/* ---------- Hero ---------- */
.hero {
  max-width: 820px;
  margin: 0 auto;
  padding: 80px 28px 60px;
  text-align: center;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  text-transform: lowercase;
  letter-spacing: 0.04em;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 700;
}
.hero h1 .accent { color: var(--accent); }
.lede {
  color: var(--muted);
  font-size: clamp(16px, 2.2vw, 19px);
  max-width: 620px;
  margin: 26px auto 0;
}
.cta-row { display: flex; gap: 14px; justify-content: center; margin: 36px 0 28px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 15px; font-weight: 500;
  text-decoration: none;
  transition: transform .12s, background .15s, border-color .15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #ff6363; }
.btn-ghost { color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: #3a3d4a; }

.install {
  display: inline-flex; align-items: center; gap: 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 12px 12px 18px;
  font-family: var(--mono);
  font-size: 14px;
}
.install code { color: var(--text); }
.install code::before { content: "$ "; color: var(--muted); }
.copy-btn {
  background: var(--panel-2);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 5px 12px;
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
  transition: color .15s, border-color .15s;
}
.copy-btn:hover { color: var(--text); border-color: #3a3d4a; }

/* ---------- How ---------- */
.how {
  max-width: 1080px;
  margin: 24px auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px 24px;
}
.card-cmd {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 14px;
}
.card h3 { font-size: 17px; margin-bottom: 8px; letter-spacing: -0.01em; }
.card p { color: var(--muted); font-size: 14.5px; }

/* ---------- Playground ---------- */
.playground {
  max-width: 1080px;
  margin: 70px auto 40px;
  padding: 0 28px;
}
.playground-head { text-align: center; margin-bottom: 28px; }
.playground-head h2 { font-size: clamp(26px, 4vw, 34px); letter-spacing: -0.02em; }
.playground-head p { color: var(--muted); margin-top: 10px; }

.examples {
  display: flex; align-items: center; gap: 10px;
  justify-content: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.examples span { color: var(--muted); font-size: 14px; }
.chip {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.chip:hover { border-color: var(--accent); background: var(--accent-dim); }

.pg-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.pg-pane {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 420px;
}
.pane-label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}
#pg-input {
  flex: 1;
  background: transparent;
  border: none;
  resize: none;
  color: var(--text);
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.6;
  padding: 18px;
  outline: none;
  tab-size: 2;
}
.pg-output { flex: 1; padding: 18px; font-family: var(--mono); font-size: 13.5px; overflow-y: auto; }

.verdict {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 16px;
  font-weight: 500;
}
.verdict.pass { background: #4ade8015; color: var(--green); border: 1px solid #4ade8030; }
.verdict.fail { background: var(--accent-dim); color: var(--accent); border: 1px solid #ff4d4d33; }
.verdict.warn { background: #fbbf2415; color: var(--yellow); border: 1px solid #fbbf2430; }

.finding { display: flex; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.finding:last-child { border-bottom: none; }
.finding .icon { flex-shrink: 0; }
.finding.error .icon { color: var(--accent); }
.finding.warning .icon { color: var(--yellow); }
.finding .rule { color: var(--text); font-weight: 600; }
.finding .msg { color: var(--muted); }
.finding-body { display: flex; flex-direction: column; gap: 2px; }

.empty { color: var(--muted); }

/* ---------- Footer ---------- */
.footer {
  max-width: 1080px;
  margin: 60px auto 0;
  padding: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
  flex-wrap: wrap;
  gap: 10px;
}
.footer a { color: var(--muted); text-decoration: none; }
.footer a:hover { color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .how { grid-template-columns: 1fr; }
  .pg-grid { grid-template-columns: 1fr; }
  .nav-links { gap: 16px; }
  .pg-pane { min-height: 300px; }
}