:root {
  --blue-900: #0a2540;
  --blue-700: #14467c;
  --blue-500: #1f6fd6;
  --blue-050: #eef4fb;
  --ink: #16283c;
  --muted: #5b7186;
  --line: #d7e2ee;
  --green: #1d9d63;
  --red: #d64545;
  --amber: #d9930d;
  --radius: 14px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: #fbfcfe;
  line-height: 1.55;
}
a { color: var(--blue-500); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }

header.site {
  background: var(--blue-900);
  color: #fff;
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 22px; color: #fff; }
.logo:hover { text-decoration: none; }
.logo .mark {
  width: 30px; height: 30px; border-radius: 8px; background: var(--blue-500);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 17px; font-weight: 800;
}
.logo .zero { color: #7db4f0; }
nav.main a { color: #cfe2f5; margin-left: 22px; font-size: 15px; }
nav.main a:hover { color: #fff; }

.hero { text-align: center; padding: 44px 0 8px; }
.hero h1 { font-size: 42px; margin: 0 0 10px; color: var(--blue-900); letter-spacing: -0.5px; }
.hero p.sub { font-size: 18px; color: var(--muted); margin: 0 auto; max-width: 620px; }
.badges { margin-top: 14px; font-size: 13.5px; color: var(--muted); }
.badges span { margin: 0 8px; white-space: nowrap; }
.badges b { color: var(--green); }

.tool {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 8px 30px rgba(10, 37, 64, 0.07);
  padding: 22px; margin: 28px 0 10px;
}
textarea#input {
  width: 100%; min-height: 190px; resize: vertical;
  border: 1px solid var(--line); border-radius: 10px; padding: 14px;
  font: inherit; font-size: 15.5px; color: var(--ink); background: #fdfefe;
}
textarea#input:focus { outline: 2px solid var(--blue-500); outline-offset: 1px; }
.toolrow { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 12px; }
#wordcount { color: var(--muted); font-size: 14px; margin-right: auto; }
#wordcount.warn { color: var(--red); }
button {
  font: inherit; cursor: pointer; border-radius: 10px; border: 1px solid transparent;
  padding: 11px 22px; font-weight: 600;
}
button.primary { background: var(--blue-500); color: #fff; font-size: 16px; }
button.primary:hover { background: var(--blue-700); }
button.primary:disabled { background: #9dbfdd; cursor: wait; }
button.ghost { background: #fff; border-color: var(--line); color: var(--blue-700); }
button.ghost:hover { border-color: var(--blue-500); }
.error {
  display: none; margin-top: 14px; padding: 12px 14px; border-radius: 10px;
  background: #fdeeee; color: #8f2626; border: 1px solid #f3c2c2; font-size: 15px;
}

#result { display: none; margin-top: 22px; }
.scorehead { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.bignum { font-size: 64px; font-weight: 800; line-height: 1; color: var(--blue-900); }
.bignum small { font-size: 30px; font-weight: 700; }
.verdict {
  display: inline-block; padding: 6px 16px; border-radius: 999px;
  font-weight: 700; font-size: 16px; color: #fff; background: var(--green);
}
.verdict.mixed { background: var(--amber); }
.verdict.likely { background: var(--red); }
.scoremeta { color: var(--muted); font-size: 14px; }
.meter { height: 12px; border-radius: 999px; margin: 18px 0 6px;
  background: linear-gradient(90deg, #2fbf71, #f2c230 55%, #e5484d); position: relative; }
.meter .pin {
  position: absolute; top: -5px; width: 4px; height: 22px; border-radius: 2px;
  background: var(--blue-900); transform: translateX(-2px);
}
#segments {
  margin-top: 16px; padding: 16px; border: 1px solid var(--line);
  border-radius: 10px; background: #fff; font-size: 15.5px; line-height: 1.75;
}
#segments .seg { border-radius: 4px; padding: 1px 2px; }
.legend { font-size: 13px; color: var(--muted); margin-top: 8px; }
.legend .sw { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: -1px; margin: 0 4px 0 10px; }
#feedbackrow { margin-top: 16px; display: flex; align-items: center; gap: 12px; }
#feedbackthanks { color: var(--green); font-size: 14.5px; display: none; }

section.block { padding: 34px 0 4px; }
section.block h2 { color: var(--blue-900); font-size: 26px; margin: 0 0 12px; }
section.block p, section.block li { color: #33475c; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin-top: 8px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.card h3 { margin: 0 0 6px; font-size: 17px; color: var(--blue-900); }
.card p { margin: 0; font-size: 14.5px; }
table.numbers { border-collapse: collapse; width: 100%; margin: 12px 0; background: #fff; }
table.numbers th, table.numbers td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; font-size: 15px; }
table.numbers th { background: var(--blue-050); color: var(--blue-900); }
details.faq { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 13px 16px; margin: 10px 0; }
details.faq summary { font-weight: 600; cursor: pointer; color: var(--blue-900); }
details.faq p { margin: 8px 0 2px; }

footer.site { margin-top: 54px; border-top: 1px solid var(--line); padding: 22px 0 34px; color: var(--muted); font-size: 14px; }
footer.site .wrap { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
footer.site nav { margin-left: auto; }
footer.site nav a { margin-left: 18px; color: var(--muted); }
.pagehead { padding: 36px 0 0; }
.pagehead h1 { color: var(--blue-900); font-size: 32px; margin: 0 0 8px; }
@media (max-width: 560px) {
  .hero h1 { font-size: 32px; }
  .bignum { font-size: 48px; }
}