/* Plimsoll Tools – one stylesheet, no external requests */
@font-face { font-family: "Barlow"; src: url("fonts/Barlow-Regular.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("fonts/Barlow-Medium.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Barlow Condensed"; src: url("fonts/BarlowCondensed-SemiBold.woff2") format("woff2"); font-weight: 600; font-display: swap; }

:root {
  /* brand, fixed in both modes */
  --hull: #1F3A4D;
  --paint: #EDEFEA;
  --signal: #C2553F;      /* accent on hull blue */
  --antifouling: #A2412F; /* red band */
  --hull-text: #B0C2CD;
  /* content, light */
  --bg: #F3F5F5;
  --surface: #FFFFFF;
  --ink: #1F3A4D;
  --ink-soft: #4E6878;
  --rule: #D3DCE0;
  --accent: #A2412F;
  --mark-top: var(--hull);
  --mark-low: var(--antifouling);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #13222E;
    --surface: #1A2E3D;
    --ink: #E3E9EB;
    --ink-soft: #A9BAC4;
    --rule: #2B4253;
    --accent: #D9715B;
    --mark-top: var(--paint);
    --mark-low: var(--signal);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 1.125rem/1.65 "Barlow", system-ui, -apple-system, "Segoe UI", sans-serif;
}
.wrap { max-width: 46rem; margin: 0 auto; padding: 0 1.5rem; }

a { color: var(--accent); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 { font-family: "Barlow Condensed", "Arial Narrow", sans-serif; font-weight: 600; line-height: 1.1; letter-spacing: 0.005em; }
h2 { font-size: 2rem; margin: 3rem 0 0.75rem; }
h3 { font-size: 1.5rem; margin: 0; }

/* header */
.site-head { background: var(--surface); border-bottom: 1px solid var(--rule); }
.head-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 0.8rem; padding-bottom: 0.8rem; }
.brand { display: flex; align-items: center; gap: 0.6rem; color: var(--ink); text-decoration: none; font: 600 1.4rem/1 "Barlow Condensed", sans-serif; }
nav { display: flex; gap: 1.25rem; font-weight: 500; font-size: 1rem; }
nav a { color: var(--ink); text-decoration: none; }
nav a:hover { color: var(--accent); }

/* the mark */
.mark { display: block; }
.mark-head { width: 2.6rem; height: auto; }
.mark .mark-top { fill: var(--mark-top); }
.mark .mark-low { fill: var(--mark-low); }

/* hero: a ship's hull with its waterline */
.hero { background: var(--hull); color: var(--paint); }
.hero .wrap { display: flex; align-items: center; gap: 2rem; padding-top: 3.5rem; padding-bottom: 3rem; }
.hero h1 { font-size: clamp(2.6rem, 8vw, 4.5rem); margin: 0; }
.hero .claim { color: var(--hull-text); font-weight: 500; font-size: 1.25rem; margin: 0.4rem 0 0; }
.hero .crumb { margin: 0 0 0.4rem; font-weight: 500; }
.hero .crumb a { color: var(--hull-text); }
.mark-hero { width: clamp(7rem, 22vw, 11rem); flex: none; }
.hero .mark .mark-top { fill: var(--paint); }
.hero .mark .mark-low { fill: var(--signal); }
.waterline { height: 2.25rem; background: var(--antifouling); border-top: 6px solid var(--paint); }

/* content */
.content { padding-top: 2.5rem; padding-bottom: 4rem; }
.lead { font-size: 1.3rem; line-height: 1.55; margin-top: 0; }
.tool { background: var(--surface); border: 1px solid var(--rule); border-left: 6px solid var(--accent); padding: 1.25rem 1.5rem; }
.tool p { margin: 0.6rem 0 0; }
.tool-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.tool h3 a { color: var(--ink); text-decoration: none; }
.tool h3 a:hover { color: var(--accent); }
.status { font-size: 0.95rem; font-weight: 500; color: var(--ink-soft); }
.meta { color: var(--ink-soft); font-size: 1rem; }

.checks dt { font: 600 1.35rem/1.2 "Barlow Condensed", sans-serif; margin-top: 1.25rem; }
.checks dd { margin: 0.25rem 0 0; }
ul { padding-left: 1.25rem; }
li { margin: 0.3rem 0; }
.note { background: var(--surface); border: 1px solid var(--rule); padding: 0.9rem 1.2rem; margin-top: 0; }
.todo { color: var(--ink-soft); font-style: italic; }

/* footer */
.site-foot { border-top: 1px solid var(--rule); background: var(--surface); }
.foot-inner { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1.25rem; padding-bottom: 1.25rem; font-size: 1rem; color: var(--ink-soft); }
.foot-inner p { margin: 0; display: flex; gap: 1.25rem; }

@media (max-width: 34rem) {
  .hero .wrap { flex-direction: column; align-items: flex-start; gap: 1.25rem; padding-top: 2.5rem; }
  h2 { font-size: 1.75rem; }
}