/* FluxMoat site styles.
   Colours are lifted from the app's own DesignSystem so the site and the
   product read as one thing:
     BrandPalette.swift      surfaceTop/surfaceBottom, blueLight/blueDeep, threat
     TrafficTotals.swift     sent / received (ink, flips with scheme)
     RulesView.swift         blockFill #D32F2F, allowFill #15803D (the AA-safe pair)
   House rule carried over from the app: red is a verdict. It means BLOCKED and
   nothing else. Threat blocks get the violet. Ordinary traffic gets pink/blue.
   Never paint anything else red here. */

:root {
  color-scheme: light dark;

  /* Light is the fallback definition; dark overrides below. */
  --bg: #ffffff;
  --bg-elev: #f6f8fc;
  --surface: #ffffff;
  --card: #ffffff;
  --card-border: rgba(10, 23, 41, 0.12);
  --text: #0a1729;
  --text-dim: rgba(10, 23, 41, 0.68);
  --text-faint: rgba(10, 23, 41, 0.52);
  --rule: rgba(10, 23, 41, 0.10);

  --accent: #2e6be0;         /* BrandPalette.blueDeep */
  --accent-soft: rgba(46, 107, 224, 0.10);
  --threat: #8c38eb;         /* BrandPalette.threat, light value */
  --threat-soft: rgba(140, 56, 235, 0.12);
  --sent: #9e1a94;           /* TrafficPalette.sent, light ink */
  --received: #1a4cc7;       /* TrafficPalette.received, light ink */
  --blocked: #d32f2f;        /* RulesView.blockFill — BLOCKED ONLY */
  --blocked-soft: rgba(211, 47, 47, 0.10);
  --allowed: #15803d;        /* RulesView.allowFill */
  --allowed-soft: rgba(21, 128, 61, 0.10);

  --shadow: 0 1px 2px rgba(10, 23, 41, 0.06), 0 8px 24px rgba(10, 23, 41, 0.06);
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 46rem;
  --maxw-wide: 62rem;

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

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a1729;           /* BrandPalette.surfaceTop */
    --bg-elev: #1a2147;      /* BrandPalette.surfaceBottom */
    --surface: rgba(255, 255, 255, 0.045);
    --card: rgba(255, 255, 255, 0.07);   /* BrandPalette.cardFill */
    --card-border: rgba(255, 255, 255, 0.10); /* BrandPalette.separator */
    --text: rgba(255, 255, 255, 0.94);   /* BrandPalette.textPrimary */
    --text-dim: rgba(255, 255, 255, 0.72);
    --text-faint: rgba(255, 255, 255, 0.62); /* BrandPalette.textSecondary */
    --rule: rgba(255, 255, 255, 0.10);

    --accent: #73adfa;       /* BrandPalette.blueLight */
    --accent-soft: rgba(115, 173, 250, 0.14);
    --threat: #c78aff;       /* BrandPalette.threat, dark value */
    --threat-soft: rgba(199, 138, 255, 0.18);
    --sent: #f299ed;         /* TrafficPalette.sent, dark ink */
    --received: #85bdff;     /* TrafficPalette.received, dark ink */
    --blocked: #ff6b6b;      /* lifted for legibility on the night surface */
    --blocked-soft: rgba(255, 107, 107, 0.15);
    --allowed: #30d159;      /* TrafficPalette.allowedFill */
    --allowed-soft: rgba(48, 209, 89, 0.15);

    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px rgba(0, 0, 0, 0.32);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

@media (prefers-color-scheme: dark) {
  body {
    /* The app's night gradient, top to bottom. */
    background: linear-gradient(180deg, #0a1729 0%, #1a2147 100%);
    background-attachment: fixed;
  }
}

/* ---------- layout ---------- */

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem; }
.wrap-wide { width: 100%; max-width: var(--maxw-wide); margin: 0 auto; padding: 0 1.25rem; }

section { padding: 3.5rem 0; }
section + section { border-top: 1px solid var(--rule); }

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

.site-head {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--rule);
}
.site-head .wrap-wide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  letter-spacing: -.01em;
  font-size: 1.05rem;
}
.brand svg { display: block; flex: none; }
.nav { display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; }
.nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: .95rem;
}
.nav a:hover, .nav a:focus-visible { color: var(--accent); text-decoration: underline; }
.nav a[aria-current="page"] { color: var(--text); font-weight: 600; }

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

.hero { padding: 4.5rem 0 3.5rem; text-align: center; }
.hero .mark { margin: 0 auto 1.75rem; display: block; }
.hero h1 {
  margin: 0 0 .75rem;
  font-size: clamp(2.1rem, 7vw, 3.1rem);
  line-height: 1.1;
  letter-spacing: -.03em;
  font-weight: 700;
}
.hero .tagline {
  margin: 0 auto;
  max-width: 34rem;
  font-size: clamp(1.05rem, 3.4vw, 1.25rem);
  color: var(--text-dim);
  text-wrap: balance;
}
.hero .sub {
  margin: 1.5rem auto 0;
  max-width: 36rem;
  color: var(--text-faint);
  font-size: .98rem;
}

/* ---------- headings ---------- */

h2 {
  font-size: clamp(1.4rem, 4.5vw, 1.85rem);
  line-height: 1.2;
  letter-spacing: -.02em;
  margin: 0 0 .5rem;
  font-weight: 700;
}
h3 {
  font-size: 1.08rem;
  margin: 0 0 .35rem;
  font-weight: 650;
  letter-spacing: -.01em;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: .74rem;
  font-weight: 700;
  color: var(--text-faint);
  margin: 0 0 .85rem;
}
.lede { color: var(--text-dim); margin: 0 0 2rem; max-width: 40rem; }

p { margin: 0 0 1rem; }
a { color: var(--accent); }

/* ---------- feature cards ---------- */

.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.35rem;
}
.card h3 { display: flex; align-items: center; gap: .5rem; }
.card p { margin: 0; color: var(--text-dim); font-size: .95rem; }
.card .tag {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .12rem .45rem;
  border-radius: 5px;
  vertical-align: middle;
}
.tag-threat { color: var(--threat); background: var(--threat-soft); }
.tag-blocked { color: var(--blocked); background: var(--blocked-soft); }
.tag-allowed { color: var(--allowed); background: var(--allowed-soft); }

/* ---------- honesty list ---------- */

.honesty {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .75rem;
}
.honesty li {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: .9rem 1.1rem;
  color: var(--text);
  font-size: 1rem;
}
.honesty li .why {
  display: block;
  margin-top: .3rem;
  color: var(--text-faint);
  font-size: .88rem;
}

/* ---------- ladder ---------- */

.ladder { list-style: none; margin: 1rem 0 0; padding: 0; counter-reset: none; }
.ladder li {
  display: flex;
  gap: .75rem;
  align-items: baseline;
  padding: .6rem 0;
  border-bottom: 1px solid var(--rule);
}
.ladder li:last-child { border-bottom: 0; }
.ladder .step {
  flex: none;
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--text-faint);
  min-width: 2.6rem;
}
.ladder .what { font-weight: 600; }
.ladder .note { color: var(--text-dim); font-size: .93rem; }

/* ---------- traffic legend (pink/blue pair) ---------- */

.legend { display: flex; gap: 1.25rem; flex-wrap: wrap; margin: 1rem 0 0; padding: 0; list-style: none; }
.legend li { display: flex; align-items: center; gap: .45rem; font-size: .92rem; color: var(--text-dim); }
.swatch { width: .85rem; height: .85rem; border-radius: 3px; display: inline-block; flex: none; }
.sw-sent { background: var(--sent); }
.sw-received { background: var(--received); }
.sw-threat { background: var(--threat); }
.sw-blocked { background: var(--blocked); }
.sw-allowed { background: var(--allowed); }

/* ---------- prose pages (privacy, help) ---------- */

.prose { padding: 3rem 0 4rem; }
.prose h1 {
  font-size: clamp(1.9rem, 6vw, 2.5rem);
  letter-spacing: -.025em;
  line-height: 1.15;
  margin: 0 0 .5rem;
}
.prose .meta { color: var(--text-faint); font-size: .9rem; margin: 0 0 2.5rem; }
.prose h2 { margin: 2.75rem 0 .75rem; font-size: 1.35rem; }
.prose h3 { margin: 1.75rem 0 .5rem; }
.prose ul, .prose ol { padding-left: 1.25rem; margin: 0 0 1rem; }
.prose li { margin-bottom: .5rem; }
.prose strong { font-weight: 650; }

.callout {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.15rem;
  margin: 1.5rem 0;
}
.callout p:last-child { margin-bottom: 0; }
.callout.plain { border-left: 3px solid var(--accent); }

/* endpoint table */
.table-scroll { overflow-x: auto; margin: 1.25rem 0; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; font-size: .92rem; min-width: 34rem; }
th, td { text-align: left; padding: .65rem .75rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-weight: 650; color: var(--text); white-space: nowrap; }
td code { font-size: .85em; }
code {
  font-family: var(--mono);
  font-size: .88em;
  background: var(--accent-soft);
  color: inherit;
  padding: .1rem .3rem;
  border-radius: 4px;
  word-break: break-word;
}

/* FAQ */
.faq { margin: 0; }
.faq details {
  border-bottom: 1px solid var(--rule);
  padding: .35rem 0;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: .85rem 0;
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: .6rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+";
  font-family: var(--mono);
  color: var(--accent);
  font-weight: 700;
  flex: none;
  line-height: 1.5;
}
.faq details[open] summary::before { content: "\2212"; }
.faq .answer { padding: 0 0 1rem 1.35rem; color: var(--text-dim); }
.faq .answer p:last-child { margin-bottom: 0; }

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

.site-foot {
  border-top: 1px solid var(--rule);
  padding: 2.5rem 0 3.5rem;
  color: var(--text-faint);
  font-size: .9rem;
}
.site-foot .cols {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.5rem;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}
.site-foot a { color: var(--text-dim); }
.site-foot a:hover { color: var(--accent); }
.site-foot .links { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.site-foot .fine { margin: 0; }
.site-foot .fine + .fine { margin-top: .4rem; }
.no-track { color: var(--text-faint); }

/* ---------- misc ---------- */

.center { text-align: center; }
.soon {
  display: inline-block;
  margin-top: 1.75rem;
  padding: .45rem .9rem;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--card);
  color: var(--text-dim);
  font-size: .9rem;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--bg);
  color: var(--text);
  padding: .75rem 1rem;
  z-index: 10;
}
.skip:focus { left: .5rem; top: .5rem; }

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

@media (max-width: 34rem) {
  body { font-size: 16px; }
  section { padding: 2.75rem 0; }
  .hero { padding: 3rem 0 2.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}