/* No More Metric. Layout: a yellow tape measure runs across the top; each page is one centered column
   with a converter card, then lists and link grids. */
:root {
  --bg: #F2F4F8;
  --surface: #FFFFFF;
  --surface-2: #F7F8FB;
  --ink: #16213A;
  --muted: #5B6579;
  --line: #DCE1EA;
  --tape: #F5C518;
  --tape-ink: #1C1A14;
  --accent: #C23A2B;
  --accent-ink: #FFFFFF;
  --focus: #2F6FE0;
  --f-display: "Bowlby One", "Arial Black", Impact, sans-serif;
  --f-body: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-mono: "DM Mono", ui-monospace, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0E1420; --surface: #172033; --surface-2: #1C2740; --ink: #EDF0F6; --muted: #9DA7BB;
    --line: #2A3652; --accent: #E2574A; --accent-ink: #FFFFFF; --focus: #7FA8FF; color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--f-body); font-size: 16px; line-height: 1.5;
}
img { max-width: 100%; }
[hidden] { display: none !important; }
a { color: inherit; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--surface); padding: 8px 12px; border-radius: 8px; z-index: 20; }
.skip:focus { left: 12px; }

/* Tape measure */
.tape {
  position: relative; height: 56px; background: var(--tape); color: var(--tape-ink);
  overflow: hidden; border-bottom: 3px solid var(--tape-ink);
  box-shadow: inset 0 -6px 0 rgba(0,0,0,.06);
}
.tape::before {
  content: ""; position: absolute; inset: 0;
  background:
    repeating-linear-gradient(90deg, var(--tape-ink) 0 2px, transparent 2px 64px) 0 0 / 100% 24px no-repeat,
    repeating-linear-gradient(90deg, var(--tape-ink) 0 1.5px, transparent 1.5px 32px) 0 0 / 100% 16px no-repeat,
    repeating-linear-gradient(90deg, var(--tape-ink) 0 1px, transparent 1px 16px) 0 0 / 100% 10px no-repeat,
    repeating-linear-gradient(90deg, var(--tape-ink) 0 1px, transparent 1px 8px) 0 0 / 100% 6px no-repeat;
}
.tape-nums { position: absolute; left: -5px; top: 24px; display: flex; font-weight: 700; font-size: 15px; white-space: nowrap; }
.tape-nums span { width: 64px; flex: none; padding-left: 5px; }
.tape-nums span.red { color: #B3261E; }
.tape-brand {
  position: absolute; right: max(16px, env(safe-area-inset-right, 0px)); top: 26px;
  font: 400 15px/1 var(--f-display); text-decoration: none; background: var(--tape); padding: 2px 0 2px 10px;
}

.wrap {
  max-width: 880px; margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 28px 56px;
  display: grid; gap: 28px;
}
.wrap > * { min-width: 0; }

.nav { display: flex; flex-wrap: wrap; gap: 6px 18px; align-items: center; font-weight: 600; font-size: .95rem; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
.nav .home { font-family: var(--f-display); font-weight: 400; color: var(--ink); margin-right: auto; }

header.hero { display: grid; gap: 8px; }
h1 {
  font-family: var(--f-display); font-weight: 400; margin: 0;
  font-size: clamp(2.4rem, 7vw, 4.2rem); line-height: .95; letter-spacing: -.01em; text-wrap: balance;
}
h1.page { font-size: clamp(2rem, 5.6vw, 3.2rem); line-height: 1; }
h1 .strike { position: relative; color: var(--muted); }
h1 .strike::after {
  content: ""; position: absolute; left: -4%; right: -4%; top: 52%; height: .14em;
  background: var(--accent); transform: rotate(-4deg); border-radius: 2px;
}
.tagline { margin: 0; color: var(--muted); font-size: 1.08rem; max-width: 56ch; }
.crumbs { font: 500 .75rem var(--f-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.crumbs a { color: var(--muted); }

h2.big { font: 400 1.6rem/1.1 var(--f-display); letter-spacing: -.01em; margin: 0; text-wrap: balance; }
h2.small, .also h2 { font: 500 .75rem var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0 0 10px; }
.sub { margin: 4px 0 0; color: var(--muted); max-width: 60ch; }
.section-h { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.hint { font-size: .82rem; color: var(--muted); }

/* Converter card */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.tabs { display: flex; flex-wrap: wrap; gap: 6px; padding: 14px; border-bottom: 1px solid var(--line); background: var(--surface-2); }
.tab {
  font: 600 .92rem var(--f-body); color: var(--muted); background: transparent;
  border: 1px solid transparent; border-radius: 999px; padding: 7px 14px; cursor: pointer;
}
.tab:hover { color: var(--ink); border-color: var(--line); }
.tab[aria-pressed="true"] { background: var(--ink); color: var(--surface); }

.input-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 22px 22px 0; align-items: end; }
.field { display: grid; gap: 6px; min-width: 0; }
.label { font: 500 .72rem var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
#amount {
  width: 100%; min-width: 0; font: 400 2.2rem var(--f-display); color: var(--ink);
  background: var(--surface-2); border: 2px solid var(--line); border-radius: 10px; padding: 8px 14px;
  font-variant-numeric: tabular-nums;
}
#unit {
  font: 600 1.05rem var(--f-body); color: var(--ink); background: var(--surface-2);
  border: 2px solid var(--line); border-radius: 10px; padding: 0 12px; height: 64px; max-width: 46vw;
}
input:focus, select:focus, button:focus-visible, a:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.equals { display: flex; align-items: center; gap: 10px; padding: 18px 22px 4px; color: var(--muted); font: 500 .75rem var(--f-mono); letter-spacing: .08em; text-transform: uppercase; }
.equals::after { content: ""; flex: 1; border-top: 2px dashed var(--line); }

.result { padding: 6px 22px 22px; display: grid; gap: 12px; }
.answer { margin: 0; font-size: clamp(1.3rem, 3.4vw, 1.75rem); font-weight: 600; line-height: 1.25; text-wrap: balance; }
.answer .num {
  display: block; font-family: var(--f-display); font-weight: 400; color: var(--accent);
  font-size: clamp(3.2rem, 12vw, 5.6rem); line-height: 1; letter-spacing: -.02em; font-variant-numeric: tabular-nums;
}
.answer .num.wordy { font-size: clamp(2.2rem, 7vw, 3.4rem); line-height: 1.05; }
.badge { font: 500 .7rem var(--f-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--accent); vertical-align: middle; }
.icons { font-size: 2.3rem; line-height: 1.15; display: flex; flex-wrap: wrap; align-items: center; gap: 2px; min-height: 2.6rem; }
.icons .part { display: inline-block; overflow: hidden; white-space: nowrap; vertical-align: bottom; }
.icons .more { font: 500 .85rem var(--f-mono); color: var(--muted); margin-left: 8px; }
.assume { margin: 0; color: var(--muted); font-size: .92rem; }
.metric { font-family: var(--f-mono); font-size: .82rem; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; padding-top: 4px; }
.btn {
  font: 700 .98rem var(--f-body); border-radius: 10px; padding: 11px 18px; cursor: pointer;
  border: 2px solid var(--ink); background: transparent; color: var(--ink); text-decoration: none; display: inline-block;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .6; cursor: default; transform: none; }
.note { min-height: 1.4em; color: var(--muted); font-size: .9rem; margin: 0; }

/* Share panel */
.share { display: grid; gap: 12px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-2); }
.share-top { display: grid; grid-template-columns: 200px 1fr; gap: 14px; align-items: center; }
.share-top img { width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--line); display: block; }
.share-text { margin: 0; font-size: .95rem; font-weight: 600; min-width: 0; overflow-wrap: anywhere; }
.share-links { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  font: 600 .9rem var(--f-body); color: var(--ink); text-decoration: none; cursor: pointer;
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 7px 14px;
}
.pill:hover { border-color: var(--ink); }
.share-hint { margin: 0; color: var(--muted); font-size: .82rem; }

/* Lists */
.also ul, .community ul, .plain-list { list-style: none; margin: 0; padding: 0; display: grid; border-top: 1px solid var(--line); }
.also li {
  display: grid; grid-template-columns: 2.4rem 6.5rem 1fr; gap: 12px; align-items: baseline;
  padding: 12px 4px; border-bottom: 1px solid var(--line);
}
.also .e, .community .e { font-size: 1.5rem; line-height: 1; }
.also .c { font-family: var(--f-display); font-size: 1.25rem; font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.also .t { min-width: 0; }
.also a { text-decoration-color: var(--line); text-underline-offset: 3px; }
.also a:hover { text-decoration-color: currentColor; }
.chip { font: 500 .68rem var(--f-mono); letter-spacing: .06em; text-transform: uppercase; border: 1px solid var(--line); border-radius: 999px; padding: 1px 7px; margin-left: 6px; color: var(--muted); white-space: nowrap; }

/* The math */
.math { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; display: grid; gap: 10px; }
.math p { margin: 0; max-width: 65ch; }
.math .eq { font-family: var(--f-mono); font-size: .95rem; background: var(--surface-2); border-radius: 8px; padding: 10px 12px; overflow-x: auto; white-space: nowrap; }

/* Link grids */
.links { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; margin: 0; padding: 0; list-style: none; }
.links a {
  display: flex; gap: 8px; align-items: center; text-decoration: none; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--surface); font-weight: 600; font-size: .95rem; min-width: 0;
}
.links a:hover { border-color: var(--ink); }
.links .le { font-size: 1.2rem; flex: none; }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: baseline; }
th { font: 500 .72rem var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); background: var(--surface-2); }
tr:last-child td { border-bottom: 0; }
td.num { font-family: var(--f-display); white-space: nowrap; }
td.e { font-size: 1.3rem; width: 2.6rem; }

/* Forms */
.form { display: grid; gap: 16px; padding: 22px; }
.form-grid { display: grid; grid-template-columns: 5.5rem 1fr 1fr; gap: 12px; }
.size-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.form input[type=text], .form input[type=number], .form input[type=email], .form select {
  width: 100%; min-width: 0; font: 500 1rem var(--f-body); color: var(--ink);
  background: var(--surface-2); border: 2px solid var(--line); border-radius: 10px; padding: 10px 12px; height: 48px;
}
.form select { width: auto; }
#fEmoji { text-align: center; font-size: 1.5rem; padding: 4px; }
.hp { position: absolute; left: -5000px; width: 1px; height: 1px; overflow: hidden; }
.preview { margin: 0; padding: 12px 14px; border-radius: 10px; border: 2px dashed var(--line); font-weight: 600; }
.preview .pe { font-size: 1.3rem; margin-right: 6px; }
.form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.status { margin: 0; color: var(--muted); font-size: .9rem; }
.status.err { color: var(--accent); }
.status.ok { color: var(--ink); font-weight: 600; }

.community li { display: grid; grid-template-columns: 2.4rem 1fr; gap: 12px; align-items: center; padding: 12px 4px; border-bottom: 1px solid var(--line); }
.community .t { min-width: 0; overflow-wrap: anywhere; }
.community .meta { display: block; color: var(--muted); font-size: .82rem; }
.empty { color: var(--muted); padding: 14px 4px; border-bottom: 1px solid var(--line); }

.newsletter { display: grid; gap: 10px; padding: 20px 22px; }
.newsletter form { display: flex; flex-wrap: wrap; gap: 10px; }
.newsletter input[type=email] { flex: 1 1 220px; min-width: 0; font: 500 1rem var(--f-body); color: var(--ink); background: var(--surface-2); border: 2px solid var(--line); border-radius: 10px; padding: 10px 12px; height: 48px; }

.ad-slot { min-height: 120px; display: grid; place-items: center; }

.prose { max-width: 65ch; display: grid; gap: 14px; }
.prose p { margin: 0; }
.prose h2 { font: 400 1.4rem/1.15 var(--f-display); margin: 12px 0 0; }

footer.site { color: var(--muted); font-size: .85rem; border-top: 1px solid var(--line); padding-top: 16px; display: grid; gap: 8px; }
footer.site nav { display: flex; flex-wrap: wrap; gap: 6px 16px; }

.pop { animation: pop .35s ease-out; }
@keyframes pop { from { transform: scale(.96); opacity: .6; } to { transform: none; opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .pop { animation: none; } .btn:hover, .btn:active { transform: none; } }

@media (max-width: 560px) {
  .input-row { grid-template-columns: 1fr; padding: 18px 16px 0; }
  #unit { max-width: none; width: 100%; height: 52px; }
  .equals, .result { padding-left: 16px; padding-right: 16px; }
  .also li { grid-template-columns: 2rem 5rem 1fr; gap: 10px; }
  .form { padding: 18px 16px; }
  .form-grid { grid-template-columns: 4.5rem 1fr; }
  .form-grid .many { grid-column: 1 / -1; }
  .share-top { grid-template-columns: 1fr; }
  .share-top img { max-width: 320px; }
  .tape-brand { display: none; }
  .math { padding: 16px; }
}
.stack { display: grid; gap: 28px; }
.stack > * { min-width: 0; }

/* Merch picker */
.merch { border: 1px solid var(--line); border-radius: 16px; padding: 0; width: min(860px, calc(100vw - 24px)); max-height: calc(100dvh - 24px); background: var(--surface); color: var(--ink); }
.merch::backdrop { background: rgba(10, 14, 24, .55); }
.merch-in { display: grid; gap: 14px; padding: 20px; }
.merch-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.merch-kinds { border: 0; padding: 0; background: none; }
.merch-body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.merch-preview { width: 100%; height: auto; aspect-ratio: 1; max-width: 100%; background: var(--surface-2); border-radius: 12px; display: block; }
.merch-side { display: grid; gap: 12px; min-width: 0; }
.merch-title { margin: 0; font-weight: 700; font-size: 1.1rem; }
.merch-says { margin: 0; color: var(--muted); overflow-wrap: anywhere; }
.merch-opts { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; }
.merch-opts select { font: 600 1rem var(--f-body); color: var(--ink); background: var(--surface-2); border: 2px solid var(--line); border-radius: 10px; padding: 0 10px; height: 46px; width: 100%; }
.merch-buy { text-align: center; }
.merch-buy[aria-disabled="true"] { opacity: .55; cursor: default; }
@media (max-width: 640px) {
  .merch-body { grid-template-columns: 1fr; }
  .merch-preview { max-width: 340px; margin: 0 auto; }
  .merch-in { padding: 16px; }
}