:root {
  --bg: #0b0d10;
  --panel: #14181d;
  --text: #e9edf2;
  --muted: #9aa5b1;
  --accent: #f4585c;
  --line: #232a32;
  --wrap: 860px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f8fa;
    --panel: #ffffff;
    --text: #14181d;
    --muted: #5b6672;
    --accent: #c4181b;
    --line: #e3e7ec;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

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

.hero { text-align: center; padding: 72px 24px 48px; }
.hero .icon {
  width: 120px; height: 120px; border-radius: 27%;
  box-shadow: 0 12px 36px rgba(0,0,0,.35);
}
.hero h1 { font-size: 40px; letter-spacing: -.02em; margin: 24px 0 6px; }
.hero .subtitle { color: var(--muted); font-size: 20px; margin: 0 0 20px; }
.hero .pitch { max-width: 560px; margin: 0 auto 28px; color: var(--muted); }

.store-badge img { height: 54px; }

.features { display: grid; gap: 22px; grid-template-columns: repeat(2, 1fr); padding: 24px 24px 56px; }
@media (max-width: 640px) { .features { grid-template-columns: 1fr; } }
.feature {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; padding: 20px 22px;
}
.feature h3 { margin: 0 0 8px; font-size: 17px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }

/* legal pages */
.legal { padding: 56px 24px 40px; }
.legal h1 { font-size: 32px; margin: 0 0 6px; letter-spacing: -.02em; }
.legal .updated { color: var(--muted); font-size: 14px; margin: 0 0 36px; }
.legal h2 { font-size: 20px; margin: 36px 0 10px; }
.legal p, .legal li { color: var(--muted); }
.legal li { margin-bottom: 6px; }
.legal strong { color: var(--text); }
.legal table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 15px; }
.legal th, .legal td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.legal th { color: var(--text); font-weight: 600; }
.legal td { color: var(--muted); }
.table-scroll { overflow-x: auto; }

footer {
  border-top: 1px solid var(--line);
  padding: 28px 24px 48px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}
footer .links { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-bottom: 12px; }

/* --- converter pages --- */
.conv { padding: 48px 24px 8px; }
.conv h1 { font-size: 30px; margin: 0 0 8px; letter-spacing: -.02em; }
.conv .lede { color: var(--muted); margin: 0 0 28px; }

.calc {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; padding: 22px; margin: 0 0 32px;
}
.calc .row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.calc label { flex: 1 1 190px; display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.calc input {
  font: 600 26px/1.2 inherit; padding: 12px 14px;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px; width: 100%;
}
.calc input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.calc .eq { font-size: 22px; color: var(--muted); padding-top: 18px; }
.calc .formula { margin: 16px 0 0; font-size: 14px; color: var(--muted); }
.calc .formula code { background: var(--bg); padding: 2px 7px; border-radius: 5px; border: 1px solid var(--line); }

.conv h2 { font-size: 21px; margin: 36px 0 12px; }
.conv p { color: var(--muted); }
.conv table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
.conv th, .conv td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.conv th { color: var(--text); font-weight: 600; }
.conv td { color: var(--muted); font-variant-numeric: tabular-nums; }
.conv td:first-child { color: var(--text); font-weight: 600; }

.cta {
  display: flex; gap: 18px; align-items: center; flex-wrap: wrap;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; padding: 20px 22px; margin: 40px 0 8px;
}
.cta img.appicon { width: 58px; height: 58px; border-radius: 24%; flex: none; }
.cta h3 { margin: 0 0 4px; font-size: 17px; }
.cta p { margin: 0; font-size: 15px; }
.cta .grow { flex: 1 1 240px; }

.crumb { font-size: 14px; color: var(--muted); padding: 20px 24px 0; }
.crumb a { color: var(--muted); }

.related { display: flex; gap: 10px; flex-wrap: wrap; margin: 14px 0 0; }
.related a {
  font-size: 14px; padding: 7px 13px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--panel);
}
.related a:hover { border-color: var(--accent); text-decoration: none; }