@font-face { font-family: "Kantumruy Pro"; font-weight: 400 700; font-display: swap; src: url(fonts/kantumruy-pro-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212; }
@font-face { font-family: "Kantumruy Pro"; font-weight: 400 700; font-display: swap; src: url(fonts/kantumruy-pro-khmer.woff2) format("woff2");
  unicode-range: U+1780-17FF, U+19E0-19FF, U+200C-200D, U+25CC; }
:root {
  --bg: var(--tg-theme-bg-color, #fff);
  --text: var(--tg-theme-text-color, #1b1b1f);
  --hint: var(--tg-theme-hint-color, #6b6b74);
  --button: var(--tg-theme-button-color, #2a7de1);
  --button-text: var(--tg-theme-button-text-color, #fff);
  --line: #d9d9de;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg: var(--tg-theme-bg-color, #17171a); --text: var(--tg-theme-text-color, #ececf0); --hint: var(--tg-theme-hint-color, #9a9aa3); --line: #3a3a40; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.45 "Kantumruy Pro", system-ui, sans-serif; }
main { max-width: 640px; margin: 0 auto; padding: 12px 16px 48px; }
h1 { font-size: 19px; margin: 8px 0; }
h2 { font-size: 16px; margin: 20px 0 8px; }
section { border-top: 1px solid var(--line); }
.note { color: var(--hint); font-size: 13px; margin: 4px 0; }
pre, textarea { width: 100%; font: 12px/1.4 ui-monospace, Menlo, monospace; white-space: pre-wrap; word-break: break-word; background: transparent; color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 8px; }
img#out { display: block; width: 270px; max-width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--line); }
.tests { padding-left: 0; list-style: none; }
.tests li { padding: 10px 0; border-bottom: 1px solid var(--line); }
button, .btn { display: inline-block; font: inherit; font-size: 14px; padding: 6px 12px; margin: 4px 4px 4px 0; border: 0; border-radius: 8px; background: var(--button); color: var(--button-text); text-decoration: none; cursor: pointer; }
button[disabled] { opacity: .45; cursor: default; }
.marks button { background: transparent; color: var(--text); border: 1px solid var(--line); }
.marks button.on { background: var(--button); color: var(--button-text); border-color: var(--button); }
.auto { font-size: 13px; color: var(--hint); }
.hide { display: none; }
canvas#pickprev { display: block; margin-top: 6px; border: 1px solid var(--line); border-radius: 6px; }
canvas#pickprev.hide { display: none; }