/* Quiet Cruise Cabins. Mobile first, no framework, no images except the ship photo. */
:root {
  --ink: #14202b;
  --muted: #5a6b78;
  --line: #dfe7ec;
  --bg: #ffffff;
  --soft: #f2f6f8;
  --accent: #0b5e7a;
  --accent-dark: #084a61;
  --a: #1d7a3d;
  --b: #6a8f1d;
  --c: #b07d0a;
  --d: #c2540a;
  --f: #b3261e;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}
a { color: var(--accent); }
a:hover { color: var(--accent-dark); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header.site { border-bottom: 1px solid var(--line); padding: 14px 0; }
header.site .wrap { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { font-weight: 800; font-size: 20px; color: var(--ink); text-decoration: none; letter-spacing: -0.3px; }
.brand span { color: var(--accent); }
nav.site a { margin-left: 18px; font-size: 15px; text-decoration: none; color: var(--muted); }
nav.site a:hover { color: var(--ink); text-decoration: underline; }
main { padding: 28px 0 48px; }
h1 { font-size: 32px; line-height: 1.2; letter-spacing: -0.5px; margin: 0 0 12px; }
h2 { font-size: 23px; line-height: 1.3; margin: 36px 0 10px; letter-spacing: -0.3px; }
h3 { font-size: 18px; margin: 22px 0 6px; }
p { margin: 0 0 14px; }
.lede { font-size: 19px; color: var(--muted); }
.small { font-size: 14px; color: var(--muted); }
ul { margin: 0 0 14px; padding-left: 22px; }
li { margin-bottom: 6px; }

/* Lookup tool */
.lookup-box {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 20px;
  margin: 24px 0;
}
.lookup-box h2 { margin-top: 0; }
.lookup-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 14px; font-weight: 600; color: var(--muted); }
.field select, .field input {
  font-size: 17px;
  padding: 11px 12px;
  border: 1px solid #b9c6ce;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  min-width: 0;
}
.field input { width: 150px; }
button.primary {
  font-size: 17px;
  font-weight: 700;
  padding: 11px 22px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
button.primary:hover { background: var(--accent-dark); }
.lookup-examples { font-size: 14px; color: var(--muted); margin-top: 12px; }
.lookup-examples button {
  background: none; border: none; padding: 0;
  color: var(--accent); font-size: 14px; cursor: pointer; text-decoration: underline;
}

/* Result card */
#lookup-result { margin-top: 20px; }
.result-card {
  border: 1px solid var(--line);
  border-left: 6px solid var(--muted);
  border-radius: 10px;
  padding: 20px;
  background: #fff;
}
.result-card.grade-A { border-left-color: var(--a); }
.result-card.grade-B { border-left-color: var(--b); }
.result-card.grade-C { border-left-color: var(--c); }
.result-card.grade-D { border-left-color: var(--d); }
.result-card.grade-F { border-left-color: var(--f); }
.result-head { display: flex; gap: 16px; align-items: flex-start; }
.grade-badge {
  flex: 0 0 auto;
  width: 64px; height: 64px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 36px; font-weight: 800; color: #fff;
  background: var(--muted);
}
.grade-A .grade-badge { background: var(--a); }
.grade-B .grade-badge { background: var(--b); }
.grade-C .grade-badge { background: var(--c); }
.grade-D .grade-badge { background: var(--d); }
.grade-F .grade-badge { background: var(--f); }
.result-head h3 { margin: 0 0 4px; font-size: 20px; }
.grade-label { font-weight: 600; color: var(--muted); font-size: 16px; }
.result-meta { color: var(--muted); margin-bottom: 4px; }
.grade-short { margin-bottom: 0; }
.above-below { background: var(--soft); border-radius: 8px; padding: 10px 12px; font-size: 15px; }
.vector-list { list-style: none; padding-left: 0; }
.vector-list li { padding-left: 18px; position: relative; }
.vector-list li::before { content: "\2022"; position: absolute; left: 0; color: var(--accent); font-weight: 800; }
.no-vectors { color: var(--muted); }
.motion-note { background: var(--soft); border-radius: 8px; padding: 10px 12px; font-size: 15px; }
.result-foot { font-size: 14px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 12px; margin-bottom: 0; }
.result-error { color: var(--f); font-weight: 600; }
.result-error-card { border-left-color: var(--f); }
.result-hint { color: var(--muted); font-size: 15px; margin-bottom: 0; }

/* Tables */
table { width: 100%; border-collapse: collapse; margin: 14px 0 20px; font-size: 15px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--soft); font-size: 14px; }
td.grade { font-weight: 800; font-size: 17px; text-align: center; }
td.grade-A { color: var(--a); }
td.grade-B { color: var(--b); }
td.grade-C { color: var(--c); }
td.grade-D { color: var(--d); }
td.grade-F { color: var(--f); }
.table-scroll { overflow-x: auto; }

/* Grade scale */
.grade-scale { list-style: none; padding: 0; }
.grade-scale li { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 12px; }
.grade-chip {
  flex: 0 0 auto; width: 34px; height: 34px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: #fff; font-size: 18px;
}
.chip-A { background: var(--a); }
.chip-B { background: var(--b); }
.chip-C { background: var(--c); }
.chip-D { background: var(--d); }
.chip-F { background: var(--f); }

figure { margin: 20px 0; }
figure img { width: 100%; height: auto; border-radius: 10px; display: block; }
figcaption { font-size: 14px; color: var(--muted); margin-top: 8px; }
.callout { background: var(--soft); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; margin: 20px 0; }
.callout h3 { margin-top: 0; }
footer.site { border-top: 1px solid var(--line); padding: 24px 0 40px; font-size: 14px; color: var(--muted); }
footer.site p { margin-bottom: 8px; }
@media (max-width: 520px) {
  h1 { font-size: 27px; }
  .field input { width: 130px; }
  .lookup-form { flex-direction: column; align-items: stretch; }
  button.primary { width: 100%; }
}