/* Keel — one vertical centerline. Signature: feet-from-stem ticks. */
:root {
  --kt-ink: #0c2438; --kt-paper: #e8eef2; --kt-teak: #c4a574; --kt-rust: #b84a2a;
  --kt-mute: #4a5e6c; --kt-card: #f4f8fa;
  --kt-disp: "Taviraj", Georgia, serif;
  --kt-ui: "Source Code Pro", ui-monospace, monospace;
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--kt-paper); color: var(--kt-ink); font-family: var(--kt-ui); font-size: 15px; line-height: 1.65; }
a { color: var(--kt-rust); }
:focus-visible { outline: 3px solid var(--kt-teak); outline-offset: 2px; }
.kt-skip { position: absolute; left: -9999px; }
.kt-skip:focus { left: 8px; top: 8px; background: var(--kt-teak); color: var(--kt-ink); padding: 8px 12px; z-index: 5; }
.kt-hold { max-width: 880px; margin: 0 auto; padding: 0 20px; }
.kt-bar { background: var(--kt-ink); color: var(--kt-paper); }
.kt-bar .kt-hold { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 20px; flex-wrap: wrap; }
.kt-mark { color: inherit; text-decoration: none; }
.kt-mark-n { display: block; font-family: var(--kt-disp); font-size: 1.25rem; letter-spacing: 0.04em; }
.kt-mark-s { display: block; margin-top: 4px; font-size: 0.7rem; color: #9bb0bf; }
.kt-nav { display: flex; gap: 16px; }
.kt-nav a { color: var(--kt-paper); text-decoration: none; font-size: 0.85rem; }
.kt-nav a:hover { color: var(--kt-teak); }
.kt-stem { display: none; background: transparent; color: var(--kt-teak); border: 1px solid var(--kt-teak); font: inherit; padding: 7px 14px; cursor: pointer; }
.kt-stations { display: none; background: #081820; padding: 0 20px 12px; }
.kt-stations[hidden] { display: none; }
.kt-stations a { display: block; color: var(--kt-paper); text-decoration: none; padding: 10px 0; border-bottom: 1px solid #ffffff18; }
h1, h2, h3 { font-family: var(--kt-disp); line-height: 1.2; margin: 0 0 12px; letter-spacing: 0.02em; }
h1 { font-size: clamp(1.7rem, 3.6vw, 2.3rem); }
h2 { font-size: clamp(1.2rem, 2.2vw, 1.6rem); }
p { margin: 0 0 14px; }
.kt-kicker { margin: 0 0 8px; font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--kt-rust); font-weight: 600; }
.kt-lead { font-size: 1.02rem; }
.kt-block { padding: 40px 0; }
.kt-line { list-style: none; margin: 20px 0 0; padding: 0 0 0 28px; border-left: 3px solid var(--kt-teak); }
.kt-line li { display: grid; grid-template-columns: 72px 1fr; gap: 18px; padding: 0 0 28px 20px; position: relative; }
.kt-line li::before { content: ""; position: absolute; left: -8px; top: 6px; width: 13px; height: 13px; background: var(--kt-ink); border: 2px solid var(--kt-teak); border-radius: 50%; }
.kt-ft { font-family: var(--kt-disp); color: var(--kt-rust); font-size: 0.95rem; }
.kt-prices { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.kt-prices th, .kt-prices td { text-align: left; padding: 8px 8px; border-bottom: 1px solid #c5d0d6; }
.kt-on { background: var(--kt-card); }
.kt-notes { margin: 0; padding: 0 0 0 18px; }
.kt-notes li { margin-bottom: 8px; }
.kt-pair { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 28px; }
.kt-form { background: var(--kt-card); padding: 20px; border-left: 6px solid var(--kt-teak); }
.kt-f { margin-bottom: 12px; }
.kt-l { display: block; font-weight: 600; margin-bottom: 4px; }
.kt-hint { display: block; font-size: 0.78rem; color: var(--kt-mute); }
.kt-in { width: 100%; font: inherit; padding: 9px 10px; border: 1px solid var(--kt-ink); background: #fff; }
.kt-tick { display: grid; grid-template-columns: 22px 1fr; gap: 10px; margin: 12px 0; font-size: 0.82rem; }
.kt-go { width: 100%; background: var(--kt-ink); color: var(--kt-teak); border: 0; font: inherit; font-weight: 600; padding: 12px 16px; cursor: pointer; }
.kt-chalk { min-height: 1.2em; font-weight: 600; }
.kt-chalk.is-bad { color: #8d2418; }
.kt-chalk.is-good { color: #1d5a32; }
.kt-logged { background: var(--kt-ink); color: var(--kt-paper); padding: 22px; }
.kt-doc { padding: 36px 0 48px; max-width: 760px; }
.kt-doc h2 { margin-top: 28px; font-size: 1.2rem; }
.kt-idx { background: var(--kt-card); padding: 16px 18px; margin: 16px 0 24px; }
.kt-aside { background: var(--kt-card); padding: 16px 18px; margin: 0 0 20px; border-left: 4px solid var(--kt-rust); }
.kt-foot { background: var(--kt-ink); color: #b7c6d0; padding: 28px 0; font-size: 0.86rem; }
.kt-foot a { color: #fff; }
@media (max-width: 840px) {
  .kt-nav { display: none; }
  .kt-stem { display: inline-block; }
  .kt-stations { display: block; }
  .kt-line li, .kt-pair { grid-template-columns: 1fr; }
}