/*
  FeedParity — public site.

  The palette is lifted from the application's own tokens so the marketing site
  and the product look like one thing: the slate "ink" ramp and the single
  indigo accent. One accent only, on purpose — the product's visual language is
  restraint, and a marketing site covered in gradients would contradict the
  thing being sold, which is sober verification.

  No web fonts: the system stack renders instantly and there is no third-party
  request on any page.
*/

:root {
  --ink-50: #f8fafc;
  --ink-100: #f1f5f9;
  --ink-200: #e2e8f0;
  --ink-300: #cbd5e1;
  --ink-400: #94a3b8;
  --ink-500: #64748b;
  --ink-600: #475569;
  --ink-700: #334155;
  --ink-800: #1e293b;
  --ink-900: #0f172a;
  --ink-950: #020617;

  --accent-50: #eef2ff;
  --accent-100: #e0e7ff;
  --accent-200: #c7d2fe;
  --accent-500: #6366f1;
  --accent-600: #4f46e5;
  --accent-700: #4338ca;

  --healthy-50: #ecfdf5;
  --healthy-200: #a7f3d0;
  --healthy-600: #059669;
  --healthy-700: #047857;

  --warn-50: #fffbeb;
  --warn-200: #fde68a;
  --warn-700: #b45309;

  --critical-50: #fef2f2;
  --critical-200: #fecaca;
  --critical-600: #dc2626;
  --critical-700: #b91c1c;

  --radius: 12px;
  --maxw: 1120px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06), 0 12px 32px rgba(15, 23, 42, 0.06);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-700);
  background: #fff;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4 {
  color: var(--ink-900);
  line-height: 1.15;
  letter-spacing: -0.022em;
  margin: 0;
  font-weight: 640;
}

h1 { font-size: clamp(2.1rem, 1.4rem + 2.6vw, 3.5rem); letter-spacing: -0.032em; }
h2 { font-size: clamp(1.55rem, 1.2rem + 1.3vw, 2.15rem); letter-spacing: -0.026em; }
h3 { font-size: 1.14rem; letter-spacing: -0.014em; }

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--accent-600);
  text-decoration: none;
  font-weight: 550;
}
a:hover { color: var(--accent-700); text-decoration: underline; }

code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--ink-100);
  border: 1px solid var(--ink-200);
  border-radius: 5px;
  padding: 0.1em 0.36em;
  color: var(--ink-800);
  word-break: break-word;
}

:focus-visible {
  outline: 2px solid var(--accent-600);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 16px;
  top: 16px;
  z-index: 50;
  background: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
}

/* ---------- header ---------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(1.6) blur(10px);
  border-bottom: 1px solid var(--ink-200);
}

.head-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 66px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 660;
  color: var(--ink-900);
  letter-spacing: -0.02em;
  font-size: 1.06rem;
}
.brand:hover { text-decoration: none; color: var(--ink-900); }
.brand svg { display: block; }

.head-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.head-nav a.navlink {
  color: var(--ink-600);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 12px;
  border-radius: 8px;
}
.head-nav a.navlink:hover {
  color: var(--ink-900);
  background: var(--ink-100);
  text-decoration: none;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.97rem;
  padding: 11px 20px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.14s ease, border-color 0.14s ease, transform 0.14s ease;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--ink-900);
  color: #fff;
  border-color: var(--ink-900);
}
.btn-primary:hover { background: var(--ink-800); color: #fff; }

.btn-secondary {
  background: #fff;
  color: var(--ink-800);
  border-color: var(--ink-300);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover { color: var(--ink-900); border-color: var(--ink-400); }

.btn-lg { padding: 14px 26px; font-size: 1.02rem; border-radius: 11px; }

/* ---------- hero ---------- */

.hero {
  padding: clamp(56px, 4vw, 96px) 0 clamp(40px, 3vw, 64px);
  background:
    radial-gradient(1100px 420px at 50% -160px, var(--accent-50), transparent 70%),
    #fff;
  border-bottom: 1px solid var(--ink-200);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent-700);
  background: var(--accent-50);
  border: 1px solid var(--accent-100);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 22px;
}

/*
  The app name as real text, above the headline. It reads as a kicker, but the
  point is that it is prose in the document rather than a label inside the logo
  SVG — an automated brand reviewer cannot read the latter.
*/
.app-name {
  font-size: 0.94rem;
  font-weight: 680;
  letter-spacing: 0.02em;
  color: var(--ink-900);
  margin: 0 0 10px;
}

.hero h1 { max-width: 18ch; }

/*
  The purpose statement. Deliberately the most prominent paragraph on the page
  after the headline: it is the sentence a reviewer, and a merchant who has
  never heard of us, needs to read first.
*/
.purpose {
  font-size: clamp(1.02rem, 0.98rem + 0.3vw, 1.14rem);
  color: var(--ink-800);
  max-width: 68ch;
  margin-top: 20px;
  padding-left: 16px;
  border-left: 3px solid var(--accent-600);
}
.purpose strong { color: var(--ink-900); font-weight: 680; }

.purpose-links {
  font-size: 0.95rem;
  color: var(--ink-600);
  margin-top: 14px;
  max-width: 68ch;
}

.lede {
  font-size: clamp(1.06rem, 1rem + 0.35vw, 1.24rem);
  color: var(--ink-600);
  max-width: 62ch;
  margin-top: 20px;
}

.tagline {
  font-size: 1.05rem;
  font-weight: 620;
  color: var(--ink-900);
  margin-top: 18px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
  align-items: center;
}

.cta-note {
  font-size: 0.9rem;
  color: var(--ink-500);
  margin-top: 14px;
}

/* ---------- sections ---------- */

section { padding: clamp(52px, 4.5vw, 88px) 0; }
section.alt { background: var(--ink-50); border-block: 1px solid var(--ink-200); }

.section-head { max-width: 68ch; margin-bottom: 40px; }
.section-head p { color: var(--ink-600); margin-top: 14px; font-size: 1.04rem; }

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(272px, 1fr));
}

.card {
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.card h3 { margin-bottom: 8px; }
.card p { color: var(--ink-600); font-size: 0.97rem; }

.card-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-500);
  background: var(--ink-100);
  border: 1px solid var(--ink-200);
  border-radius: 5px;
  padding: 2px 7px;
  margin-bottom: 12px;
}

/* ---------- the flow diagram ---------- */

.figure {
  margin: 0;
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  padding: 26px;
  overflow: hidden;
}
.figure svg { width: 100%; height: auto; display: block; }
.figure figcaption {
  margin-top: 16px;
  font-size: 0.88rem;
  color: var(--ink-500);
  text-align: center;
}

/* ---------- comparison strip ---------- */

.compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-sm);
  font-size: 0.95rem;
}
.compare-col { padding: 18px 20px; min-width: 0; }
.compare-col h4 {
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-500);
  margin: 0 0 12px;
  font-weight: 620;
}
.compare-mid {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  background: var(--ink-50);
  border-inline: 1px solid var(--ink-200);
  color: var(--ink-400);
}
.kv { display: flex; justify-content: space-between; gap: 14px; padding: 5px 0; }
.kv span:first-child { color: var(--ink-500); }
.kv span:last-child { font-family: var(--mono); font-size: 0.88rem; color: var(--ink-800); }
.kv.bad span:last-child { color: var(--critical-700); font-weight: 600; }
.kv.good span:last-child { color: var(--healthy-700); }

.verdict {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: var(--critical-50);
  border: 1px solid var(--critical-200);
  border-radius: 10px;
  padding: 13px 15px;
  font-size: 0.93rem;
  color: var(--critical-700);
}

/* ---------- checks list ---------- */

.checks { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.check {
  display: flex;
  gap: 13px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: 10px;
  padding: 16px 18px;
}
.check-dot {
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-top: 8px;
  background: var(--accent-600);
}
.check strong { color: var(--ink-900); display: block; font-weight: 620; font-size: 0.99rem; }
.check span { color: var(--ink-600); font-size: 0.93rem; }

/* ---------- boundaries (does / does not) ---------- */

.bounds { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.bound { border-radius: var(--radius); padding: 24px; border: 1px solid; }
.bound.does { background: var(--healthy-50); border-color: var(--healthy-200); }
.bound.doesnt { background: var(--ink-50); border-color: var(--ink-200); }
.bound h3 { margin-bottom: 14px; }
.bound ul { margin: 0; padding: 0; list-style: none; }
.bound li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 9px;
  font-size: 0.97rem;
  color: var(--ink-700);
}
.bound li::before {
  position: absolute;
  left: 0;
  top: -1px;
  font-weight: 700;
}
.bound.does li::before { content: "✓"; color: var(--healthy-600); }
.bound.doesnt li::before { content: "✕"; color: var(--ink-400); }

/* ---------- pricing ---------- */

.prices { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); max-width: 780px; }
.price {
  border: 1px solid var(--ink-200);
  border-radius: var(--radius);
  padding: 28px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.price.featured { border-color: var(--accent-200); box-shadow: var(--shadow-md); }
.price h3 { font-size: 1.06rem; }
.price .amount {
  font-size: 2.5rem;
  font-weight: 680;
  color: var(--ink-900);
  letter-spacing: -0.03em;
  margin: 12px 0 4px;
}
.price .amount small { font-size: 0.95rem; font-weight: 500; color: var(--ink-500); letter-spacing: 0; }
.price ul { list-style: none; margin: 18px 0 24px; padding: 0; }
.price li { padding-left: 24px; position: relative; margin-bottom: 8px; font-size: 0.96rem; }
.price li::before { content: "✓"; position: absolute; left: 0; color: var(--healthy-600); font-weight: 700; }
.price .btn { margin-top: auto; width: 100%; }

/* ---------- google transparency block ---------- */

.google-note {
  border: 1px solid var(--accent-100);
  background: linear-gradient(180deg, var(--accent-50), #fff 60%);
  border-radius: 16px;
  padding: clamp(24px, 3vw, 38px);
}
.google-note h2 { margin-bottom: 16px; }
.google-note p { color: var(--ink-700); max-width: 74ch; }
.scope-chip {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.84rem;
  background: #fff;
  border: 1px solid var(--accent-200);
  color: var(--accent-700);
  border-radius: 7px;
  padding: 4px 10px;
  margin: 6px 0 14px;
  word-break: break-all;
}

/* ---------- footer ---------- */

.site-foot {
  border-top: 1px solid var(--ink-200);
  background: var(--ink-50);
  padding: 46px 0 40px;
  font-size: 0.94rem;
}
.foot-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
  align-items: flex-start;
}
.foot-brand { max-width: 34ch; }
.foot-brand p { color: var(--ink-500); font-size: 0.9rem; margin-top: 10px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 40px; }
.foot-col h4 {
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-500);
  margin: 0 0 12px;
  font-weight: 620;
}
.foot-col a { display: block; color: var(--ink-600); font-weight: 500; margin-bottom: 9px; }
.foot-col a:hover { color: var(--ink-900); }
.foot-bottom {
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--ink-200);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  color: var(--ink-500);
  font-size: 0.87rem;
}

/* ---------- legal pages ---------- */

.legal-head {
  padding: clamp(44px, 4vw, 72px) 0 30px;
  border-bottom: 1px solid var(--ink-200);
  background: var(--ink-50);
}
.legal-head p { color: var(--ink-500); margin-top: 10px; font-size: 0.94rem; }

.legal {
  padding: clamp(36px, 3.4vw, 60px) 0 clamp(56px, 5vw, 88px);
}
.legal .wrap { max-width: 780px; }
.legal h2 {
  font-size: 1.32rem;
  margin: 44px 0 14px;
  padding-top: 6px;
}
.legal h2:first-of-type { margin-top: 0; }
.legal h3 { margin: 26px 0 8px; font-size: 1.02rem; }
.legal p,
.legal li { color: var(--ink-700); }
.legal ul { padding-left: 22px; margin: 0 0 16px; }
.legal li { margin-bottom: 8px; }

.legal table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0 20px;
  font-size: 0.93rem;
  display: block;
  overflow-x: auto;
  white-space: nowrap;
}
.legal table thead th {
  text-align: left;
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-500);
  border-bottom: 1px solid var(--ink-200);
  padding: 0 14px 9px 0;
  font-weight: 620;
}
.legal table td {
  padding: 11px 14px 11px 0;
  border-bottom: 1px solid var(--ink-100);
  vertical-align: top;
  color: var(--ink-700);
  white-space: normal;
}
@media (min-width: 720px) {
  .legal table { display: table; white-space: normal; }
}

.callout {
  border: 1px solid var(--accent-100);
  background: var(--accent-50);
  border-radius: 10px;
  padding: 16px 18px;
  margin: 18px 0;
  font-size: 0.96rem;
  color: var(--ink-700);
}

.toc {
  border: 1px solid var(--ink-200);
  border-radius: 10px;
  background: #fff;
  padding: 18px 20px;
  margin-bottom: 34px;
}
.toc h4 {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-500);
  margin: 0 0 10px;
  font-weight: 620;
}
.toc ol { margin: 0; padding-left: 20px; columns: 2; column-gap: 28px; }
.toc li { margin-bottom: 5px; font-size: 0.92rem; }
@media (max-width: 560px) { .toc ol { columns: 1; } }

/* ---------- contact ---------- */

.contact-grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.contact-card {
  border: 1px solid var(--ink-200);
  border-radius: var(--radius);
  padding: 24px;
  background: #fff;
}
.contact-card .addr {
  font-family: var(--mono);
  font-size: 0.95rem;
  word-break: break-all;
  display: inline-block;
  margin-top: 6px;
}

/* ---------- 404 ---------- */

.notfound { padding: clamp(70px, 8vw, 130px) 0; text-align: center; }
.notfound p { max-width: 46ch; margin-inline: auto; color: var(--ink-600); }

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .compare { grid-template-columns: 1fr; }
  .compare-mid {
    border-inline: 0;
    border-block: 1px solid var(--ink-200);
    padding: 10px 0;
  }
  .compare-mid svg { transform: rotate(90deg); }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .head-nav .navlink.hide-sm { display: none; }
  .cta-row .btn { width: 100%; }
  .foot-links { gap: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}