[hidden] { display: none !important; }
:root {
  --paper: #f6f6f3;
  --card: #ffffff;
  --ink: #1b1f23;
  --muted: #5b6168;
  --line: #d9dbd6;
  --accent: #1b6b43;
  --accent-soft: #e2f0e7;
  --on-accent: #ffffff;
  --warn: #b3261e;
  --warn-soft: #fbe7e5;
  --ok: #1d7a46;
  --body: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif;
}
:root{--body:system-ui,-apple-system,"Segoe UI",sans-serif;--accent:#0e7490;--accent-soft:#dff1f5;--accent-dark:#5fd0e8;--accent-soft-dark:#12303a;--on-accent-dark:#04222b;--n1:#0e6b8a;--n2:#2c7a2c;--n3:#b3362b;--n4:#5b3fa0;--n5:#8a5a00;--n6:#007a6a;--n7:#444;--n8:#8a2d6b;}@media (prefers-color-scheme:dark){:root{--n1:#6cc7e6;--n2:#7fd27f;--n3:#ff8f84;--n4:#b6a0f0;--n5:#e6b55c;--n6:#5fd9c4;--n7:#c8c8c8;--n8:#f09ad2;}}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14171a;
    --card: #1d2124;
    --ink: #eceae4;
    --muted: #a8a49a;
    --line: #3a3d42;
    --warn: #ff8f86;
    --warn-soft: #3a2220;
    --ok: #6fd69b;
  }
  :root { --accent: var(--accent-dark, var(--accent)); --accent-soft: var(--accent-soft-dark, #1f2f26); --on-accent: var(--on-accent-dark, #0b1f14); }
}
* { box-sizing: border-box; }
html { overflow-x: clip; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.7 var(--body); }
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
img { max-width: 100%; height: auto; }
.wrap { max-width: 1120px; margin: 0 auto; padding-inline: 24px; }
.narrow { max-width: 820px; }

.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 18px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); text-decoration: none; font-size: 19px; }
.brand img { width: 30px; height: 30px; border-radius: 7px; }
.bar nav { display: flex; gap: 22px; flex-wrap: wrap; font-size: 15px; }
.bar nav a { color: var(--muted); text-decoration: none; padding-block: 4px; }
.bar nav a:hover, .bar nav a[aria-current="page"] { color: var(--ink); }
.bar nav a[aria-current="page"] { border-bottom: 2px solid var(--accent); }

footer { border-top: 1px solid var(--line); margin-top: 72px; padding-block: 28px 44px; font-size: 14px; color: var(--muted); }
footer .row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 28px; }
footer a { color: var(--muted); }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.langs { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 18px; }
.langs span[aria-current] { color: var(--ink); font-weight: 600; }

h1 { font-weight: 650; font-size: clamp(32px, 5vw, 50px); line-height: 1.12; letter-spacing: -.025em; margin: 14px 0 14px; }
h2 { font-weight: 600; font-size: clamp(23px, 3vw, 30px); line-height: 1.25; margin: 48px 0 12px; letter-spacing: -.01em; }
h3 { font-size: 20px; margin: 26px 0 8px; }
p, li { max-width: 74ch; }
.eyebrow { font-size: 13px; text-transform: uppercase; letter-spacing: .14em; color: var(--accent); font-weight: 600; margin: 0; }
.lead { font-size: 19px; color: var(--muted); max-width: 64ch; margin-top: 0; }
.crumbs { font-size: 14px; color: var(--muted); padding-top: 8px; }
.crumbs a { color: var(--muted); }
.crumbs .sep { margin-inline: 8px; }
.meta { font-size: 14px; color: var(--muted); margin: 0 0 24px; }
.homehead { padding-top: 22px; }

.answer { background: var(--accent-soft); border-inline-start: 4px solid var(--accent); border-radius: 10px; padding: 16px 20px; margin: 28px 0 8px; }
.answer b { display: block; font-size: 13px; text-transform: uppercase; letter-spacing: .12em; color: var(--accent); margin-bottom: 6px; }
.answer p { margin: 0; }
.callout { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 18px; margin: 20px 0; }
.article ol, .article ul { padding-inline-start: 1.3em; }
.article li { margin: 6px 0; }
.legal h2 { font-size: 22px; margin: 34px 0 8px; }
.tablewrap { overflow-x: auto; margin: 18px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; background: var(--card); }
th, td { border: 1px solid var(--line); padding: 8px 12px; text-align: start; }
th { background: var(--accent-soft); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 10px; padding: 10px 16px; font: inherit; font-size: 15px; cursor: pointer; min-height: 44px; text-decoration: none; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); font-weight: 600; }
.btn[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.btn:disabled { opacity: .45; cursor: default; }

.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 10px 0 0; }

ul.cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
ul.cards li { max-width: none; margin: 0; }
ul.cards a { display: block; height: 100%; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; text-decoration: none; color: var(--ink); }
ul.cards a:hover { border-color: var(--accent); }
ul.cards b { display: block; margin-bottom: 4px; }
ul.cards span { display: block; font-size: 14px; color: var(--muted); line-height: 1.5; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 48px; border-top: 1px solid var(--line); }
.features .fh { font-size: 20px; margin: 26px 0 8px; }

/* tool widgets */
.tool { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px; margin: 22px 0; }
.tool label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 4px; }
.tool input[type="text"], .tool input[type="number"], .tool input[type="url"], .tool input[type="email"], .tool input[type="tel"], .tool textarea, .tool select {
  font: inherit; width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); color: var(--ink); min-height: 46px; }
.tool textarea { min-height: 96px; resize: vertical; }
.tool input[type="range"] { width: 100%; accent-color: var(--accent); }
.tool input[type="checkbox"], .tool input[type="radio"] { accent-color: var(--accent); width: 20px; height: 20px; }
.row2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
.chk { display: flex; align-items: center; gap: 10px; padding: 6px 0; font-size: 16px !important; color: var(--ink) !important; margin: 0 !important; cursor: pointer; }
.field { margin-bottom: 16px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.out { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: clamp(18px, 3vw, 26px); background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; word-break: break-all; min-height: 64px; display: flex; align-items: center; }
.meter { height: 10px; background: var(--line); border-radius: 6px; overflow: hidden; margin: 12px 0 6px; }
.meter > i { display: block; height: 100%; width: 0; background: var(--warn); transition: width .2s; }
.meter > i.ok { background: var(--ok); }
.tool-msg { min-height: 1.6em; margin: 10px 0 0; font-weight: 600; font-size: 15px; }
.tool-msg.ok { color: var(--ok); }
.tool-msg.bad { color: var(--warn); }
.statline { color: var(--muted); font-size: 15px; font-variant-numeric: tabular-nums; }
.big { font-size: clamp(34px, 6vw, 56px); font-weight: 700; line-height: 1.1; font-variant-numeric: tabular-nums; }
.segmented { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.segmented button { border: 0; background: var(--card); color: var(--ink); padding: 10px 14px; font: inherit; font-size: 15px; cursor: pointer; min-height: 44px; }
.segmented button[aria-pressed="true"] { background: var(--accent); color: var(--on-accent); }
@media (prefers-reduced-motion: reduce) { .meter > i { transition: none; } }

@media (max-width: 860px) {
  .features { grid-template-columns: 1fr; gap: 20px; }
  .wrap { padding-inline: 16px; }
}
@media print { .bar, footer, .no-print { display: none !important; } }

.mshud { display: flex; flex-wrap: wrap; gap: 6px 22px; align-items: baseline; font-variant-numeric: tabular-nums; font-size: 17px; margin: 14px 0 6px; }
.mshud b { font-size: 22px; }
.msstatus { color: var(--muted); font-size: 15px; min-height: 1.5em; margin: 0 0 10px; }
.msboardwrap { container-type: inline-size; overflow-x: auto; padding: 4px 2px 8px; }
.msgrid { --cell: clamp(var(--ms-mincell), calc((100cqw - 20px) / var(--ms-cols) - 2px), 40px); display: inline-block; border: 2px solid var(--line); border-radius: 12px; padding: 6px; background: var(--card); user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; touch-action: manipulation; direction: ltr; }
.msgrid:empty { height: calc(var(--ms-rows) * (var(--cell) + 2px) + 16px); }
.msrow { display: flex; }
.mscell { box-sizing: border-box; width: var(--cell); height: var(--cell); margin: 1px; border-radius: 7px; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: calc(var(--cell) * 0.5); line-height: 1; font-variant-numeric: tabular-nums; background: var(--accent-soft); border: 1px solid var(--accent); border-bottom-width: 3px; cursor: pointer; color: var(--ink); }
.mscell:hover { filter: brightness(0.96); }
.mscell:focus-visible { outline: 3px solid var(--accent); outline-offset: 1px; z-index: 1; position: relative; }
.mscell svg { width: 70%; height: 70%; display: block; }
.mscell.open { background: var(--paper); border-color: var(--line); border-bottom-width: 1px; cursor: default; }
.mscell.n1 { color: var(--n1); } .mscell.n2 { color: var(--n2); } .mscell.n3 { color: var(--n3); } .mscell.n4 { color: var(--n4); }
.mscell.n5 { color: var(--n5); } .mscell.n6 { color: var(--n6); } .mscell.n7 { color: var(--n7); } .mscell.n8 { color: var(--n8); }
.mscell.n1, .mscell.n2, .mscell.n3, .mscell.n4, .mscell.n5, .mscell.n6, .mscell.n7, .mscell.n8 { cursor: pointer; }
.mscell.mine { color: var(--ink); }
.mscell.boom { background: #d6372c; border-color: #d6372c; color: #fff; }
.mscell.wrong { opacity: 0.55; }
.mscell.flag { background: var(--accent-soft); color: var(--ink); }
.wrapseg { flex-wrap: wrap; }
.wrapseg button { flex: 1 1 auto; }
.row3 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 12px 0; align-items: end; }
.customrow[hidden] { display: none; }
@media (max-width: 560px) { .row3 { grid-template-columns: 1fr 1fr; } }