/* PagerProof — landing.css
   Brand tokens from docs/BRAND.md. Mobile-first. No frameworks. */

:root {
  --bg: #0B1220;
  --surface: #141D2F;
  --text: #E8EDF5;
  --text-2: #8A97AB;
  --accent: #2BD98F;
  --amber: #F5A623;
  --danger: #FF5C5C;
  --border: rgba(138, 151, 171, 0.18);
  --radius: 12px;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --maxw: 1080px;
  --maxw-prose: 760px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(43, 217, 143, 0.28); }

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

code, pre, .mono {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

code {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.35em;
  white-space: nowrap;
}

pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  overflow-x: auto;
  line-height: 1.6;
  margin: 1.4rem 0;
}

pre code { background: none; border: none; padding: 0; white-space: pre; }

h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text);
}

h1 { font-size: 2.1rem; font-weight: 800; }
h2 { font-size: 1.5rem; margin-top: 2.5rem; }
h3 { font-size: 1.15rem; margin-top: 1.6rem; }

p { margin: 0.9rem 0; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- Header / nav ---------- */

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 18, 32, 0.92);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; }
.brand svg { width: 32px; height: 32px; flex: none; }

.site-nav { display: flex; align-items: center; gap: 1.1rem; font-size: 0.92rem; }
.site-nav a { color: var(--text-2); }
.site-nav a:hover { color: var(--text); text-decoration: none; }
.site-nav a.nav-cta {
  color: var(--bg);
  background: var(--accent);
  padding: 0.42rem 0.9rem;
  border-radius: 8px;
  font-weight: 600;
}
.site-nav a.nav-cta:hover { filter: brightness(1.08); }

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

.hero {
  padding: 4rem 0 3.5rem;
  display: grid;
  gap: 2.5rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.1rem);
  max-width: 14ch;
}

.hero h1 .accent { color: var(--accent); }

.tagline {
  color: var(--text);
  font-size: clamp(1.2rem, 3vw, 1.45rem);
  font-weight: 600;
  margin-top: 1rem;
}

.hero .sub {
  color: var(--text-2);
  max-width: 56ch;
  margin-top: 0.8rem;
  font-size: 1.05rem;
}

.cta-row { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.6rem; }

.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 9px;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { border-color: var(--border); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Terminal block ---------- */

.terminal {
  background: #080d18;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  max-width: 720px;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.55rem 0.9rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.terminal-bar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--border);
  display: inline-block;
}
.terminal-bar .t-title {
  width: auto; height: auto; border-radius: 0; background: none;
  margin-left: 0.5rem;
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.terminal pre {
  margin: 0;
  border: none;
  border-radius: 0;
  background: none;
  font-size: 0.82rem;
  padding: 1.1rem 1.2rem;
}

.t-dim { color: var(--text-2); }
.t-ok { color: var(--accent); }
.t-warn { color: var(--amber); }
.t-bad { color: var(--danger); }

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

section { padding: 3.2rem 0; }
section + section { border-top: 1px solid var(--border); }

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

section > .wrap > h2:first-of-type { margin-top: 0; }
.section-lede { color: var(--text-2); max-width: 62ch; }

/* ---------- Stat cards / grids ---------- */

.grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.8rem;
}
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
}

.stat .num {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--danger);
  display: block;
  margin-bottom: 0.4rem;
}
.stat .num.good { color: var(--accent); }
.stat p { color: var(--text-2); font-size: 0.94rem; margin: 0; }
.stat .src {
  display: block;
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-2);
  opacity: 0.75;
}

blockquote {
  border-left: 3px solid var(--amber);
  padding: 0.4rem 0 0.4rem 1.2rem;
  margin: 1.6rem 0;
  color: var(--text);
  font-style: italic;
}
blockquote .src { font-style: normal; color: var(--text-2); font-size: 0.85rem; }

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

.step { position: relative; }
.step .step-n {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
  font-size: 0.85rem;
  display: block;
  margin-bottom: 0.5rem;
}
.step h3 { margin-top: 0; font-size: 1.02rem; }
.step p { color: var(--text-2); font-size: 0.92rem; margin: 0.5rem 0 0; }

.privacy-note {
  margin-top: 1.6rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.3rem;
  color: var(--text-2);
  font-size: 0.95rem;
  background: rgba(43, 217, 143, 0.04);
}
.privacy-note strong { color: var(--text); }

/* ---------- Pricing ---------- */

.pricing-grid { align-items: stretch; }

.price-card {
  display: flex;
  flex-direction: column;
  position: relative;
}

.price-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 16px 40px rgba(43, 217, 143, 0.08);
}

.price-card .plan-flag {
  position: absolute;
  top: -0.8rem;
  left: 1.2rem;
  background: var(--accent);
  color: var(--bg);
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
}

.price-card h3 { margin-top: 0; }

.price {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  margin: 0.6rem 0 0.1rem;
}
.price .per { font-size: 0.85rem; color: var(--text-2); font-weight: 400; }
.price-sub { color: var(--text-2); font-size: 0.86rem; font-family: var(--font-mono); }

.price-card ul {
  list-style: none;
  margin: 1.1rem 0 1.4rem;
  flex: 1;
}
.price-card li {
  padding: 0.3rem 0 0.3rem 1.4rem;
  position: relative;
  color: var(--text-2);
  font-size: 0.93rem;
}
.price-card li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.founding {
  display: inline-block;
  margin-top: 0.5rem;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.guarantee {
  margin-top: 1.8rem;
  border: 1px dashed var(--accent);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  font-size: 0.97rem;
}
.guarantee strong { color: var(--accent); }
.guarantee p { margin: 0.3rem 0; }

/* ---------- FAQ ---------- */

.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  margin-top: 0.8rem;
  padding: 0 1.3rem;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 1rem 0;
  list-style: none;
  position: relative;
  padding-right: 2rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 0.2rem;
  top: 0.85rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 1.2rem;
}
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--text-2); font-size: 0.96rem; margin-top: 0; padding-bottom: 1.1rem; }
.faq details p + p { margin-top: 0.6rem; }

/* ---------- Contact form ---------- */

.contact-form {
  max-width: 520px;
  margin-top: 1.6rem;
  display: grid;
  gap: 0.8rem;
}
.contact-form label {
  font-size: 0.85rem;
  color: var(--text-2);
  font-family: var(--font-mono);
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.97rem;
  padding: 0.65rem 0.85rem;
  margin-top: 0.3rem;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.contact-form textarea { min-height: 120px; resize: vertical; }

#form-msg { font-family: var(--font-mono); font-size: 0.85rem; min-height: 1.2em; }
#form-msg.ok { color: var(--accent); }
#form-msg.err { color: var(--danger); }

/* ---------- Final CTA ---------- */

.final-cta { text-align: center; }
.final-cta h2 { margin-top: 0; font-size: clamp(1.5rem, 4vw, 2rem); }
.final-cta p { color: var(--text-2); max-width: 52ch; margin-left: auto; margin-right: auto; }
.final-cta .cta-row { justify-content: center; }

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

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.2rem 0;
  color: var(--text-2);
  font-size: 0.9rem;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.site-footer a { color: var(--text-2); }
.site-footer a:hover { color: var(--accent); }

/* ---------- Article / prose (methodology + blog) ---------- */

.prose {
  max-width: var(--maxw-prose);
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

.prose header.article-head { margin-bottom: 2.2rem; }
.prose h1 { font-size: clamp(1.8rem, 4.5vw, 2.5rem); max-width: 24ch; }
.prose .article-meta {
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  margin-top: 0.9rem;
}
.prose .article-lede {
  color: var(--text-2);
  font-size: 1.1rem;
  margin-top: 1rem;
}

.prose h2 {
  margin-top: 2.6rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--border);
}
.prose h2:first-of-type { border-top: none; padding-top: 0; }

.prose ul, .prose ol { margin: 0.9rem 0 0.9rem 1.4rem; }
.prose li { margin: 0.35rem 0; }
.prose li::marker { color: var(--accent); }

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4rem 0;
  font-size: 0.92rem;
}
.prose th, .prose td {
  border: 1px solid var(--border);
  padding: 0.55rem 0.8rem;
  text-align: left;
  vertical-align: top;
}
.prose th { background: var(--surface); font-weight: 600; }
.prose td { color: var(--text-2); }
.prose td strong, .prose td code { color: var(--text); }

.callout {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.1rem 1.4rem;
  margin: 2rem 0;
  font-size: 0.95rem;
  color: var(--text-2);
}
.callout strong { color: var(--text); }

.callout.warn { border-left-color: var(--amber); }
.callout.danger { border-left-color: var(--danger); }

.limitations {
  border: 1px solid var(--amber);
  border-radius: var(--radius);
  padding: 1.5rem 1.7rem;
  margin: 2.2rem 0;
  background: rgba(245, 166, 35, 0.05);
}
.limitations h2 {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
  color: var(--amber);
}

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

@media (min-width: 700px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 5.5rem 0 4.5rem; }
}

@media (min-width: 980px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .hero {
    grid-template-columns: 1.05fr 1fr;
    align-items: center;
  }
}

@media (max-width: 560px) {
  .site-nav { gap: 0.7rem; font-size: 0.84rem; }
  .site-nav .nav-hide-sm { display: none; }
  body { font-size: 16px; }
}