/* Boatze site — chart-plotter drafting sheet: pale water ground, navy ink,
   blue construction lines, chart magenta for anything reported by boaters. */
:root {
  --paper: #eef6fc;
  --paper-2: #ddeefa;
  --card: #ffffff;
  --ink: #0b1f33;
  --ink-2: #3e5873;
  --line: #9ccbef;
  --brand: #1477e0;
  --brand-ink: #ffffff;
  --magenta: #b4236e;
  --land: #f1e2b3;
  --land-edge: #c9b27a;
  --display: "Big Shoulders Display", "Arial Narrow", "Roboto Condensed", sans-serif;
  --body: "Public Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --wrap: 1120px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0a1726; --paper-2: #10243a; --card: #0f2034; --ink: #e3eef8; --ink-2: #9cb4cc;
    --line: #2a4e74; --brand: #4da3f5; --brand-ink: #06121f; --magenta: #e2569a;
    --land: #3a3424; --land-edge: #6d5f3c; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0a1726; --paper-2: #10243a; --card: #0f2034; --ink: #e3eef8; --ink-2: #9cb4cc;
  --line: #2a4e74; --brand: #4da3f5; --brand-ink: #06121f; --magenta: #e2569a;
  --land: #3a3424; --land-edge: #6d5f3c; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { animation: none !important; transition: none !important; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 1.0625rem/1.6 var(--body);
  background-image:
    repeating-linear-gradient(0deg, transparent 0 79px, color-mix(in srgb, var(--line) 30%, transparent) 79px 80px),
    repeating-linear-gradient(90deg, transparent 0 79px, color-mix(in srgb, var(--line) 30%, transparent) 79px 80px);
}
img { max-width: 100%; display: block; }
a { color: var(--brand); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--magenta); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: 20px; }

/* header */
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10;
  background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 12px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.brand span { font: 800 1.6rem/1 var(--display); letter-spacing: .02em; text-transform: uppercase; }
.nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: .95rem; }
.nav a { color: var(--ink-2); text-decoration: none; }
.nav a:hover { color: var(--ink); }
@media (max-width: 640px) { .nav .opt { display: none; } }

/* type */
h1, h2, h3 { font-family: var(--display); text-transform: uppercase; line-height: .95; margin: 0; text-wrap: balance; letter-spacing: .005em; }
h1 { font-weight: 800; font-size: clamp(2.8rem, 7vw, 4.8rem); }
h2 { font-weight: 800; font-size: clamp(2.2rem, 5.5vw, 3.6rem); }
h3 { font-weight: 700; font-size: 1.6rem; line-height: 1.05; }
p { margin: 0; }
.lede { font-size: 1.2rem; color: var(--ink-2); max-width: 36ch; }
.eyebrow { font: 500 .78rem/1.2 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.mag { color: var(--magenta); }

/* hero */
.hero { padding-block: 56px 40px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center; }
.hero .copy { display: grid; gap: 22px; min-width: 0; }
.hero h1 .mag { display: block; }
.chart { border: 1px solid var(--line); border-radius: 14px; background: var(--card); overflow: hidden; }
.chart svg { display: block; width: 100%; height: auto; }
.chart figcaption { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 10px 14px; border-top: 1px solid var(--line); font: .78rem/1.3 var(--mono); color: var(--ink-2); }
@media (max-width: 860px) { .hero .wrap { grid-template-columns: 1fr; } .hero { padding-block: 32px 24px; } }

/* store badges */
.stores { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.store { display: inline-flex; align-items: center; gap: 10px; padding: 10px 16px 10px 14px; border-radius: 12px;
  background: var(--ink); color: var(--paper); text-decoration: none; min-width: 176px; }
.store svg { width: 24px; height: 24px; flex: none; fill: currentColor; }
.store small { display: block; font-size: .7rem; opacity: .8; letter-spacing: .02em; }
.store b { display: block; font-weight: 600; font-size: 1.05rem; line-height: 1.1; }
.soon { font: .8rem/1.4 var(--mono); color: var(--ink-2); }

/* sections */
.sec { padding-block: 64px; border-top: 1px solid var(--line); }
.sec-head { display: grid; gap: 14px; margin-bottom: 36px; max-width: 60ch; }
.sec-head p { color: var(--ink-2); font-size: 1.1rem; }

/* report log */
.log { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.log-group { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; display: grid; gap: 12px; align-content: start; min-width: 0; }
.log-group h3 { font-size: 1.4rem; }
.log-group p { color: var(--ink-2); font-size: .95rem; }
.log ul { list-style: none; margin: 0; padding: 0; display: grid; }
.log li { display: flex; justify-content: space-between; gap: 12px; padding-block: 7px; border-bottom: 1px dashed var(--line); font-size: .97rem; }
.log li:last-child { border-bottom: 0; }
.log li .mono { color: var(--ink-2); font-size: .85rem; white-space: nowrap; }
.log-note { margin-top: 14px; font: .82rem/1.5 var(--mono); color: var(--ink-2); }
@media (max-width: 860px) { .log { grid-template-columns: 1fr; } }

/* features */
.feats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); }
.feat { padding: 28px 28px 28px 0; display: grid; gap: 10px; border-bottom: 1px solid var(--line); min-width: 0; }
.feat:nth-child(even) { padding: 28px 0 28px 28px; border-left: 1px solid var(--line); }
.feat p { color: var(--ink-2); }
.feat .tag { font: 500 .75rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--brand); }
.quote { font: 500 .95rem/1.5 var(--mono); color: var(--magenta); }
@media (max-width: 760px) {
  .feats { grid-template-columns: 1fr; }
  .feat, .feat:nth-child(even) { padding: 24px 0; border-left: 0; }
}

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; counter-reset: s; }
.step { display: grid; gap: 8px; align-content: start; }
.step::before { counter-increment: s; content: "0" counter(s); font: 800 2.6rem/1 var(--display); color: var(--brand); }
.step p { color: var(--ink-2); }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }

/* get */
.get { display: grid; grid-template-columns: auto 1fr; gap: 28px; align-items: center; }
.get img { width: 120px; height: 120px; border-radius: 28px; border: 1px solid var(--line); }
.get .copy { display: grid; gap: 16px; min-width: 0; }
@media (max-width: 600px) { .get { grid-template-columns: 1fr; } }

.notice { background: var(--paper-2); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; display: grid; gap: 8px; color: var(--ink-2); }
.notice strong { color: var(--ink); }

/* footer */
.foot { border-top: 1px solid var(--line); padding-block: 32px 40px; font-size: .92rem; color: var(--ink-2); }
.foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 18px; }
.foot a { color: var(--ink-2); }

/* legal pages */
.doc { padding-block: 48px 64px; }
.doc .wrap { max-width: 760px; }
.doc header { display: grid; gap: 12px; margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.doc h1 { font-size: clamp(2.6rem, 7vw, 4rem); }
.doc h2 { font-size: 1.9rem; margin-top: 40px; margin-bottom: 12px; }
.doc h3 { font-size: 1.25rem; margin-top: 22px; margin-bottom: 8px; }
.doc p, .doc li { color: var(--ink); }
.doc p + p, .doc p + ul, .doc ul + p { margin-top: 12px; }
.doc ul { padding-left: 1.2em; margin: 10px 0 0; display: grid; gap: 6px; }
.doc .table { overflow-x: auto; margin-top: 14px; border: 1px solid var(--line); border-radius: 12px; }
.doc table { border-collapse: collapse; width: 100%; min-width: 560px; font-size: .95rem; background: var(--card); }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.doc th { font: 500 .75rem/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); background: var(--paper-2); }
.doc tr:last-child td { border-bottom: 0; }
.doc .toc { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: .92rem; }
.copyline { display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.copyline code { font: 500 1rem var(--mono); background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; user-select: all; }
.copyline button { font: 600 .9rem var(--body); background: var(--brand); color: var(--brand-ink); border: 0; border-radius: 8px; padding: 8px 14px; cursor: pointer; }