/* Scamby — marketing site.
 *
 * One stylesheet, no framework, no build step, no JavaScript. The palette is
 * the app's: a deep teal that reads as "checked" rather than "alarmed", with
 * rust reserved for the one thing that is genuinely a warning — the honest
 * limits. Nothing on this site is coloured red to create urgency.
 *
 * Every text pair here is measured by ../scripts/check-site-contrast.py in both
 * colour schemes. Add a coloured surface, add its pair to that script.
 */

:root {
  --ink: #16212A;
  --paper: #F7F9FA;
  --surface: #FFFFFF;
  --hairline: #E2E9ED;
  --muted: #55646F;
  --primary: #0E5563;
  --on-primary: #FFFFFF;
  --accent: #99470F;
  --on-accent: #FFFFFF;
  --accent-muted: #FBEFE4;
  --ok: #1F5C3D;
  --ok-muted: #E6F1EA;
  --code: #F0F4F6;

  --r-small: 10px;
  --r-medium: 14px;
  --r-large: 20px;

  --wrap: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #EDF2F5;
    --paper: #101920;
    --surface: #18242D;
    --hairline: #26343E;
    --muted: #9EADB8;
    /* The light-mode teal is a 2.4:1 ground for this page and unreadable on
       it. Lifted toward the app's dark-scheme tint instead. */
    --primary: #5FC5D8;
    --on-primary: #101920;
    --accent: #E9A066;
    --on-accent: #101920;
    --accent-muted: #2C2018;
    --ok: #74C79B;
    --ok-muted: #16261E;
    --code: #1E2C36;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 16px;
}

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

code, .mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
  background: var(--code);
  padding: 0.12em 0.4em;
  border-radius: 5px;
}

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

header.site {
  border-bottom: 1px solid var(--hairline);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
}

header.site .wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 62px;
  flex-wrap: wrap;
}

header.site img { width: 30px; height: 30px; border-radius: 7px; }

header.site .name {
  font-weight: 700;
  letter-spacing: -0.015em;
  font-size: 19px;
}

header.site nav { margin-left: auto; display: flex; gap: 18px; flex-wrap: wrap; }
header.site nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
header.site nav a:hover { color: var(--ink); }

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

.hero { padding: 56px 0 40px; }

.hero .grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 40px;
  align-items: start;
}

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

.eyebrow {
  display: inline-block;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

h1 {
  font-size: clamp(32px, 5vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.025em;
  margin: 0 0 18px;
  font-weight: 700;
}

h2 {
  font-size: clamp(24px, 3.2vw, 30px);
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  font-weight: 700;
}

h3 { font-size: 19px; margin: 0 0 8px; font-weight: 700; }

.lede { font-size: 19px; margin: 0 0 16px; }
.lede.quiet { color: var(--muted); font-size: 17px; }

.cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 24px 0 0; }

.button {
  display: inline-block;
  background: var(--primary);
  color: var(--on-primary);
  padding: 11px 20px;
  border-radius: var(--r-small);
  text-decoration: none;
  font-weight: 600;
}

.button.secondary {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--hairline);
}

.status {
  margin-top: 28px;
  padding: 16px 18px;
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-small);
  background: var(--surface);
}

.status b { display: block; margin-bottom: 6px; }
.status p { margin: 0; color: var(--muted); font-size: 15px; }

/* ----------------------------------------------------------- result card */

.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--r-large);
  padding: 22px;
}

.result { display: flex; flex-direction: column; gap: 14px; }

.result .row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  border-radius: var(--r-medium);
}

.result .row.flagged { background: var(--accent-muted); }
.result .row.clear { background: var(--ok-muted); }

.result .mark { font-size: 20px; line-height: 1.2; }
.result .row.flagged .mark { color: var(--accent); }
.result .row.clear .mark { color: var(--ok); }

.result .row b { display: block; font-size: 15px; }
.result .row span { font-size: 14px; color: var(--muted); }
.result .hash {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.caption {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
  text-align: center;
}

/* --------------------------------------------------------------- content */

section.band { padding: 48px 0; border-top: 1px solid var(--hairline); }
section.band.tint { background: var(--surface); }

.cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 28px;
}

.cols .item h3 { margin-bottom: 6px; }
.cols .item p { margin: 0; color: var(--muted); font-size: 16px; }

.prose { max-width: 70ch; }
.prose p { margin: 0 0 14px; }
.prose ul { margin: 0 0 14px; padding-left: 22px; }
.prose li { margin-bottom: 8px; }

table.data {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  font-size: 15px;
}

table.data th, table.data td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--hairline);
}

table.data th { font-weight: 700; font-size: 14px; }
table.data td:last-child { text-align: right; white-space: nowrap; color: var(--muted); }
table.data tr.warn td { color: var(--accent); }

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

footer.site {
  border-top: 1px solid var(--hairline);
  padding: 32px 0 48px;
  color: var(--muted);
  font-size: 15px;
}

footer.site nav { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 12px; }
footer.site p { margin: 0 0 8px; max-width: 70ch; }