/* Design tokens from docs/DESIGN.md + docs/BRAND_GUIDELINES.md — keep in sync if either changes. */
:root {
  --canvas: #FFFFFF;
  --canvas-tint: #F8FAFC;
  --heading: #0F172A;
  --body: #475569;
  --secondary: #64748B;
  --tertiary: #94A3B8;
  --border: #E2E8F0;
  --primary: #4F46E5;
  --primary-dark: #4338CA;
  --accent: #06B6D4;
  --green: #16A34A;
  --green-tint: #F0FDF4;
  --green-bg: #DCFCE7;
  --red: #EF4444;
  --red-tint: #FEF2F2;
  --orange: #D97706;
  --font-sans: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--body);
  background: var(--canvas);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

img, video { max-width: 100%; display: block; }

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

.nowrap { white-space: nowrap; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 100;
  font-weight: 600;
}
.skip-link:focus {
  left: 0;
}

/* ---------- Top nav ---------- */
.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}
.topnav .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--heading);
  font-size: 1.05rem;
}
.topnav .brand img { width: 32px; height: 32px; }
.topnav nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
.topnav nav a {
  color: var(--body);
  font-weight: 500;
  font-size: 0.95rem;
}
.topnav nav a.cta {
  color: #fff;
  background: var(--primary);
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 600;
}
.topnav nav a.cta:hover { background: var(--primary-dark); text-decoration: none; }

/* ---------- Hero ---------- */
.hero {
  padding: 32px 0 64px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--heading);
  letter-spacing: -1px;
  margin: 0 0 16px;
  max-width: 780px;
  margin-inline: auto;
}
.hero .sub {
  font-size: 1.15rem;
  color: var(--body);
  max-width: 640px;
  margin: 0 auto 32px;
}
.hero .badges {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero .badges img { height: 20px; }

.video-frame {
  max-width: 800px;
  margin: 0 auto;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 20px 40px -12px rgba(15, 23, 42, 0.12);
}
.video-frame video { width: 100%; aspect-ratio: 16/9; background: #000; }
.video-caption {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--tertiary);
}

/* ---------- Sections ---------- */
section { padding: 64px 0; }
section.tint { background: var(--canvas-tint); }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  color: var(--heading);
  letter-spacing: -1px;
  text-align: center;
  margin: 0 0 12px;
}
.section-lede {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 40px;
  font-size: 1.05rem;
}

/* ---------- Problem section ---------- */
.problem-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.problem-grid p { font-size: 1.05rem; }
.problem-grid .stat {
  font-weight: 700;
  color: var(--red);
}
.who-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.who-list li {
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  font-size: 0.95rem;
  color: var(--heading);
}
.who-list li strong { color: var(--primary); }

.proof-demo {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fff;
  padding: 24px;
}
.proof-demo-label {
  font-weight: 700;
  color: var(--heading);
  margin: 0 0 8px;
  font-size: 1rem;
}
.proof-query {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--secondary);
  background: var(--canvas-tint);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin: 0 0 18px;
}
.proof-cards {
  display: grid;
  gap: 14px;
}
.proof-card {
  border-radius: 12px;
  padding: 16px;
  border: 1.5px solid;
}
.proof-card.bad {
  background: var(--red-tint);
  border-color: #FCA5A5;
}
.proof-card.good {
  background: var(--green-tint);
  border-color: #86EFAC;
}
.proof-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.proof-who {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--heading);
}
.proof-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.proof-badge.bad { background: var(--red); color: #fff; }
.proof-badge.good { background: var(--green); color: #fff; }
.proof-cite {
  font-size: 0.88rem;
  color: var(--heading);
  margin: 0 0 8px;
  line-height: 1.5;
}
.proof-note {
  font-size: 0.82rem;
  color: var(--secondary);
  margin: 0;
}
.proof-pills {
  margin-top: 18px;
  justify-content: flex-start;
}
.proof-source {
  margin: 14px 0 0;
  font-size: 0.78rem;
  color: var(--tertiary);
}

@media (max-width: 860px) {
  .problem-grid { grid-template-columns: 1fr; }
}

/* ---------- Fixes-the-root-cause grid ---------- */
.fix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.fix-card {
  border: 1.5px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  background: #fff;
  position: relative;
}
.fix-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 14px;
}
.fix-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: var(--heading);
}
.fix-card p {
  margin: 0;
  font-size: 0.92rem;
}
@media (max-width: 860px) {
  .fix-grid { grid-template-columns: 1fr; }
}

/* ---------- Pills ---------- */
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  background: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--heading);
}
.pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

/* ---------- Install ---------- */
.install-box {
  max-width: 720px;
  margin: 0 auto;
}
.terminal {
  background: var(--heading);
  border-radius: 12px;
  padding: 20px 24px;
  color: #E2E8F0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  overflow-x: auto;
  line-height: 1.7;
}
.terminal-line {
  white-space: pre-wrap;
}
.terminal-line + .terminal-line { margin-top: 6px; }
.terminal .comment { color: #64748B; }
.terminal .prompt { color: var(--accent); margin-right: 4px; }
.install-note {
  text-align: center;
  margin-top: 16px;
  font-size: 0.92rem;
  color: var(--secondary);
}
.install-buttons {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.install-buttons img { height: 32px; }
.install-more {
  text-align: center;
  margin-top: 20px;
  font-size: 0.92rem;
}

/* ---------- Comparison table ---------- */
.compare-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
}
table.compare {
  width: 100%;
  min-width: 680px;
  table-layout: fixed;
  border-collapse: collapse;
  font-size: 0.92rem;
}
table.compare th, table.compare td { word-wrap: break-word; }
table.compare th:first-child, table.compare td:first-child { width: 28%; }
table.compare th:nth-child(2), table.compare td:nth-child(2) { width: 36%; }
table.compare th:nth-child(3), table.compare td:nth-child(3) { width: 36%; }
table.compare caption {
  text-align: left;
  font-weight: 600;
  color: var(--heading);
  padding-bottom: 12px;
}
table.compare th, table.compare td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}
table.compare thead th {
  color: var(--tertiary);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  background: var(--canvas-tint);
  white-space: nowrap;
}
table.compare thead th.brand-col {
  color: var(--primary);
  background: #EEF2FF;
}
table.compare th[scope="row"] {
  color: var(--heading);
  font-weight: 600;
  font-size: 0.88rem;
}
table.compare td.yes { color: var(--green); font-weight: 700; }
table.compare td.brand { color: var(--primary); font-weight: 700; background: #EEF2FF; }
table.compare tbody tr:last-child th, table.compare tbody tr:last-child td { border-bottom: none; }
table.compare tbody tr:hover { background: var(--canvas-tint); }
table.compare tbody tr:hover td.brand { background: #E0E7FF; }

/* ---------- Outcomes grid ---------- */
.outcomes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.outcome-card {
  border: 1.5px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  background: #fff;
}
.outcome-card h3 {
  margin: 0 0 10px;
  font-size: 1rem;
  color: var(--heading);
}
.outcome-card code {
  display: inline-block;
  background: var(--canvas-tint);
  color: var(--primary-dark);
  border-radius: 6px;
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin: 2px 4px 2px 0;
}
.tool-count {
  text-align: center;
  color: var(--secondary);
  margin-top: 28px;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item summary {
  cursor: pointer;
  padding: 20px 4px;
  font-weight: 600;
  color: var(--heading);
  font-size: 1.02rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--primary);
  flex-shrink: 0;
  font-weight: 400;
}
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p {
  margin: 0 4px 20px;
  color: var(--body);
}

/* ---------- Final CTA ---------- */
.final-cta {
  text-align: center;
  padding: 72px 0;
}
.final-cta h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.3rem);
  color: var(--heading);
  letter-spacing: -1px;
  margin: 0 0 16px;
}
.final-cta .terminal { max-width: 560px; }
.docs-link-big {
  display: inline-block;
  margin-top: 24px;
  font-weight: 600;
}

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 48px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--tertiary);
}
footer a { color: var(--secondary); margin: 0 10px; }

@media (max-width: 640px) {
  .topnav nav a:not(.cta) { display: none; }
  section { padding: 48px 0; }
}