:root {
  --bg: #0b0d12;
  --bg-raised: #12151c;
  --bg-raised-2: #171b24;
  --border: #242836;
  --border-soft: #1b1f2a;
  --text: #e6e8ee;
  --text-dim: #9aa0ae;
  --text-dimmer: #6b7280;
  --accent: #6ee7b7;
  --accent-2: #60a5fa;
  --accent-dim: #2d6a4f;
  --code-bg: #0f1218;

  --c-timeout: #f0b429;
  --c-selector: #60a5fa;
  --c-assertion: #f87171;
  --c-environment: #a78bfa;
  --c-flaky: #34d399;
  --c-unknown: #9aa0ae;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
}

.wrap { max-width: 920px; margin: 0 auto; padding: 0 20px; }

a { color: var(--accent); }

h1, h2, h3 { font-weight: 750; letter-spacing: -0.01em; }

/* ---------- Nav ---------- */

.navbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 13, 18, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  color: var(--text);
}

.brand-mark { font-size: 17px; }

.nav-links { display: flex; align-items: center; gap: 22px; font-size: 14px; }
.nav-links a:not(.btn) { color: var(--text-dim); text-decoration: none; }
.nav-links a:not(.btn):hover { color: var(--text); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: 88px 0 52px;
  border-bottom: 1px solid var(--border-soft);
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(110, 231, 183, 0.18) 0%, rgba(96, 165, 250, 0.08) 45%, transparent 72%);
  pointer-events: none;
}

.hero .wrap { position: relative; }

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.06em;
  margin: 0 0 18px;
}

.hero h1 {
  font-size: clamp(32px, 5.2vw, 50px);
  line-height: 1.12;
  margin: 0 0 20px;
  max-width: 760px;
}

.accent-text {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sub {
  color: var(--text-dim);
  font-size: 18px;
  max-width: 620px;
  margin: 0 0 30px;
}

.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 26px; }
.cta-row-center { justify-content: center; }

.badge-row { display: flex; gap: 10px; flex-wrap: wrap; }

.pill {
  display: inline-block;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 13px;
  color: var(--text-dim);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 20px;
  border-radius: 9px;
  text-decoration: none;
  font-weight: 650;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.btn-primary {
  background: linear-gradient(90deg, var(--accent), #5fd6a4);
  color: #06201a;
  box-shadow: 0 0 0 0 rgba(110, 231, 183, 0);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px -6px rgba(110, 231, 183, 0.45); }

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn-lg { padding: 13px 24px; font-size: 16px; }
.btn-sm { padding: 7px 13px; font-size: 13px; }

/* ---------- Sections ---------- */

main { padding: 0; }

section { padding: 72px 0; border-bottom: 1px solid var(--border-soft); }

.cta-band { border-bottom: none; text-align: center; }

.kicker {
  color: var(--accent);
  font-weight: 700;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  margin: 0 0 10px;
}

h2 { font-size: 30px; margin: 0 0 6px; max-width: 680px; }
h2 em { color: var(--accent-2); font-style: normal; }

.section-sub { color: var(--text-dim); margin: 0 0 32px; max-width: 640px; font-size: 16px; }

/* ---------- Value cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover { border-color: var(--accent-dim); transform: translateY(-2px); }

.card-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}

.card-icon svg { width: 20px; height: 20px; }

.icon-shield { background: rgba(110, 231, 183, 0.12); color: var(--accent); }
.icon-dollar { background: rgba(96, 165, 250, 0.12); color: var(--accent-2); }
.icon-bolt { background: rgba(240, 180, 41, 0.14); color: var(--c-timeout); }
.icon-puzzle { background: rgba(167, 139, 250, 0.14); color: var(--c-environment); }

.card h3 { font-size: 16.5px; margin: 0 0 8px; }
.card p { margin: 0; color: var(--text-dim); font-size: 14.5px; }

/* ---------- Comparison table ---------- */

.compare-table {
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.compare-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  align-items: center;
}

.compare-row:not(:last-child) { border-bottom: 1px solid var(--border-soft); }

.compare-row > div {
  padding: 14px 18px;
  font-size: 14.5px;
  color: var(--text-dim);
}

.compare-row > div:first-child { color: var(--text); font-weight: 600; }

.compare-head { background: var(--bg-raised); font-size: 12.5px; }
.compare-head > div { color: var(--text-dimmer); font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase; font-size: 12px; }

.highlight-col {
  color: var(--accent) !important;
  font-weight: 600;
  background: rgba(110, 231, 183, 0.06);
}

/* ---------- How it works ---------- */

.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 24px; }

.steps li { display: flex; gap: 18px; align-items: flex-start; }

.step-num {
  flex: 0 0 auto;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  color: var(--accent);
}

.steps h3 { margin: 0 0 5px; font-size: 18px; }
.steps h3 em { color: var(--text-dimmer); font-style: normal; font-weight: 500; font-size: 14px; }
.steps p { margin: 0; color: var(--text-dim); max-width: 580px; }

code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.9em;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  overflow-x: auto;
}

pre code { background: none; border: none; padding: 0; }

/* ---------- Demo ---------- */

.examples { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }

.examples button {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 7px;
  font-size: 13px;
  cursor: pointer;
  transition: border-color 0.12s ease, color 0.12s ease;
}

.examples button:hover { border-color: var(--accent); color: var(--accent); }

#log-input {
  width: 100%;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13.5px;
  resize: vertical;
  margin-bottom: 14px;
}

#log-input:focus { outline: none; border-color: var(--accent); }

.result-area { margin-top: 20px; }

.result-area .hint { color: var(--text-dim); }

.result-card {
  background: var(--bg-raised-2);
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: 12px;
  padding: 20px 22px;
  animation: pop-in 0.18s ease;
}

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

.result-timeout { border-left-color: var(--c-timeout); }
.result-selector { border-left-color: var(--c-selector); }
.result-assertion { border-left-color: var(--c-assertion); }
.result-environment { border-left-color: var(--c-environment); }
.result-flaky { border-left-color: var(--c-flaky); }
.result-unknown { border-left-color: var(--c-unknown); }

.result-head { font-size: 18px; margin-bottom: 12px; }

.result-card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 7px 14px; }
.result-card dt { color: var(--text-dim); font-size: 13px; white-space: nowrap; }
.result-card dd { margin: 0; }

.source-note { color: var(--text-dimmer); font-size: 12.5px; margin: 16px 0 0; }

/* ---------- Footer ---------- */

footer {
  padding: 28px 0 56px;
  color: var(--text-dimmer);
  font-size: 13.5px;
}

/* ---------- Responsive ---------- */

@media (max-width: 680px) {
  .nav-links { gap: 14px; }
  .nav-links a:not(.btn):not(.brand) { display: none; }
  .cards { grid-template-columns: 1fr; }
  .compare-row { grid-template-columns: 1fr 1fr; }
  .compare-row > div:first-child { grid-column: 1 / -1; padding-bottom: 2px; font-weight: 700; background: var(--bg-raised); }
  .compare-head { grid-template-columns: 1fr 1fr; }
  .compare-head > div:first-child { display: none; }
  .compare-row > div { padding: 10px 14px; font-size: 13px; }
  section { padding: 52px 0; }
}