/* fake-ultrasound.com: a plain guide. Scan-room ink, warm paper, one amber accent. */
:root {
  --ink: #14232b;
  --ink-2: #2b3d46;
  --paper: #f5f0e7;
  --card: #fffdf8;
  --text: #1d2a30;
  --muted: #56656b;
  --line: #ddd3c3;
  --accent: #a4561a;
  --accent-ink: #7f3f0f;
  --scan-bg: #0d1418;
  --scan-fg: #d8e1e3;
  --scan-dim: #8a9a9f;
  --ok: #2f6a55;
  --warn: #8c2f1d;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #101a1f;
    --card: #16232a;
    --text: #e4e9ea;
    --muted: #9fb0b5;
    --line: #2a3b43;
    --accent: #e39a5c;
    --accent-ink: #f0b483;
    --ink-2: #0b1317;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font: 17px/1.62 var(--sans);
}
.wrap { max-width: 46rem; margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; background: var(--card); padding: 6px 10px; z-index: 5; }

a { color: var(--accent); text-underline-offset: 2px; }
a:hover { color: var(--accent-ink); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* masthead */
.masthead { background: var(--ink); color: #eef2f2; border-bottom: 4px solid var(--accent); }
.masthead-in { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px 20px; padding-top: 14px; padding-bottom: 10px; }
.brand { display: flex; align-items: center; gap: 10px; color: #eef2f2; text-decoration: none; }
.brand:hover { color: #fff; }
.brand-mark { width: 34px; height: 23px; color: #f0b483; }
.brand-text { font: 600 1.15rem/1 var(--mono); letter-spacing: -.01em; }
.brand-dot { color: #9fb0b5; font-weight: 400; }
.nav { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 2px 14px; }
.nav li { margin: 0; }
.nav a { color: #cfd9db; text-decoration: none; font-size: .9rem; line-height: 1.3; padding: 6px 0; display: inline-block; }
.nav a:hover, .nav a[aria-current="page"] { color: #fff; box-shadow: inset 0 -2px 0 #f0b483; }

/* type */
h1, h2, h3 { font-family: var(--serif); line-height: 1.2; color: var(--text); }
h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); margin: 1.6rem 0 .6rem; letter-spacing: -.01em; }
h2 { font-size: 1.5rem; margin: 2.2rem 0 .6rem; }
h3 { font-size: 1.15rem; margin: 1.6rem 0 .4rem; }
p, ul, ol { margin: 0 0 1rem; }
li { margin-bottom: .35rem; }
.lede { font-size: 1.12rem; color: var(--muted); }
.kicker { font: 600 .75rem/1 var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--accent); margin: 1.8rem 0 0; }
small, .muted { color: var(--muted); }

/* blocks */
.stamp {
  display: inline-block; font: 700 .75rem/1 var(--mono); text-transform: uppercase; letter-spacing: .14em;
  color: var(--warn); border: 2px solid currentColor; padding: 6px 9px; transform: rotate(-1.5deg); margin: 0 0 1rem;
}
@media (prefers-color-scheme: dark) { .stamp { color: #f08f78; } }
.note { background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--accent); padding: 14px 16px; margin: 1.4rem 0; border-radius: 4px; }
.note p:last-child { margin-bottom: 0; }
.note.stop { border-left-color: var(--warn); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 12px; margin: 1.2rem 0 2rem; padding: 0; list-style: none; }
.cards li { margin: 0; }
.cards a { display: block; height: 100%; background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 14px 16px; text-decoration: none; color: var(--text); }
.cards a:hover { border-color: var(--accent); }
.cards strong { display: block; font-family: var(--serif); font-size: 1.1rem; color: var(--accent); margin-bottom: 4px; }
.cards span { font-size: .93rem; color: var(--muted); }

/* the scan-style readout panel */
.scan { background: var(--scan-bg); color: var(--scan-fg); border-radius: 8px; padding: 16px; margin: 1.4rem 0; font: .86rem/1.5 var(--mono); overflow-x: auto; }
.scan figcaption { color: var(--scan-dim); margin-top: 10px; font-family: var(--sans); font-size: .85rem; }
.scan svg { display: block; width: 100%; height: auto; max-width: 36rem; margin: 0 auto; }

/* tables */
.tbl { width: 100%; border-collapse: collapse; margin: 1rem 0 1.6rem; font-size: .95rem; }
.tbl th, .tbl td { text-align: left; vertical-align: top; padding: 9px 10px; border-bottom: 1px solid var(--line); }
.tbl th { font-family: var(--mono); font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 600; }
.tbl-wrap { overflow-x: auto; }

details { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 10px 14px; margin: 0 0 10px; }
summary { cursor: pointer; font-weight: 600; font-family: var(--serif); font-size: 1.08rem; }
details[open] summary { margin-bottom: 8px; }

/* footer */
.foot { margin-top: 3rem; background: var(--ink-2); color: #cdd7d9; padding: 26px 0 30px; font-size: .92rem; }
.foot a { color: #f0b483; }
.foot .stamp { color: #f08f78; }
.foot-links { margin-top: .6rem; }

/* consent banner */
.consent { position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 10; max-width: 34rem; margin: 0 auto;
  background: var(--card); color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px;
  box-shadow: 0 8px 28px rgba(0,0,0,.18); font-size: .92rem; }
.consent p { margin: 0 0 10px; }
.consent .row { display: flex; gap: 8px; flex-wrap: wrap; }
.btn { font: 600 .9rem/1 var(--sans); padding: 10px 14px; border-radius: 6px; border: 1px solid var(--line); background: transparent; color: var(--text); cursor: pointer; }
.btn.primary { background: var(--ink); border-color: var(--ink); color: #fff; }
@media (prefers-color-scheme: dark) { .btn.primary { background: #e39a5c; border-color: #e39a5c; color: #111; } }