:root {
    --paper: oklch(97.5% 0.012 85);
    --paper-2: oklch(93.5% 0.02 85);
    --paper-0: oklch(99.2% 0.006 85);
    --ink: oklch(21% 0.012 70);
    --ink-2: oklch(44% 0.014 70);
    --rule: oklch(85% 0.014 80);
    --notice: oklch(78% 0.16 70);
    --alarm: oklch(56% 0.2 32);
    --alarm-bg: oklch(94% 0.045 32);
    --ok: oklch(48% 0.13 150);
    --warn: oklch(55% 0.14 75);
  }
  *, *::before, *::after { box-sizing: border-box; }
  html { background: var(--paper); scroll-padding-top: 24px; }
  body {
    margin: 0; color: var(--ink); background: var(--paper);
    font: 500 17px/1.55 "Libre Franklin", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased; font-variant-numeric: tabular-nums;
  }
  .pl-wrap { max-width: 1120px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px); }
  .pl-prose { max-width: 68ch; padding-top: clamp(32px, 5vw, 56px); }
  .pl-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--rule); }
  .pl-mark { display: inline-flex; align-items: center; gap: 9px; font-weight: 900; font-size: 1.3rem; letter-spacing: -0.035em; color: var(--ink); text-decoration: none; }
  .pl-mark svg { width: 26px; height: 18px; }
  .pl-nav { display: flex; gap: 22px; align-items: center; font-weight: 700; font-size: 0.95rem; }
  .pl-nav a { color: var(--ink); text-decoration: none; }
  .pl-nav a:hover { text-decoration: underline; text-underline-offset: 4px; }
  .pl-nav .pl-btn { color: var(--paper-0); }
  .pl-nav .pl-btn:hover { text-decoration: none; }
  .pl-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px;
    background: var(--ink); color: var(--paper-0); padding: 0 20px; border-radius: 4px; border: 0;
    font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; transition: background 150ms cubic-bezier(.22,1,.36,1);
  }
  .pl-btn:hover { background: oklch(31% 0.014 70); }
  .pl-btn:disabled { opacity: .6; cursor: default; }
  .pl-btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink); }
  .pl-btn-ghost:hover { background: oklch(0% 0 0 / .06); }
  :focus-visible { outline: 3px solid var(--alarm); outline-offset: 2px; }
  h1 { font-size: clamp(2.1rem, 4.8vw, 3.6rem); line-height: 1.02; letter-spacing: -0.03em; font-weight: 900; margin: 0 0 20px; text-wrap: balance; }
  h2 { font-size: clamp(1.55rem, 2.7vw, 2.1rem); line-height: 1.1; letter-spacing: -0.022em; font-weight: 800; margin: 0 0 14px; text-wrap: balance; }
  h3 { font-size: 1.15rem; line-height: 1.3; font-weight: 700; margin: 26px 0 8px; }
  p, li { max-width: 68ch; }
  p { margin: 0 0 16px; }
  ul, ol { margin: 0 0 16px; padding-left: 22px; }
  li { margin-bottom: 8px; }
  a { color: var(--ink); text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
  code { font: 0.9em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: var(--paper-2); padding: 1px 6px; border-radius: 3px; }
  .pl-eyebrow { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase; color: var(--ink-2); margin: 0 0 14px; }
  .pl-sec { padding-top: clamp(40px, 6vw, 88px); }
  .pl-sec + .pl-sec { border-top: 1px solid var(--rule); margin-top: clamp(40px, 6vw, 88px); }
  .pl-field { display: flex; gap: 10px; flex-wrap: wrap; margin: 22px 0 8px; }
  .pl-input {
    flex: 1 1 240px; min-width: 0; max-width: 100%; min-height: 46px; padding: 0 14px; font: inherit; font-weight: 500;
    border: 2px solid var(--ink); border-radius: 4px; background: var(--paper-0); color: var(--ink);
  }
  .pl-label { display: block; font-weight: 700; font-size: 0.9rem; margin-bottom: 6px; }
  .pl-hint { font-size: 0.85rem; color: var(--ink-2); }
  .pl-error { color: var(--alarm); font-weight: 700; }
  .pl-result { margin-top: 36px; border-top: 2px solid var(--ink); padding-top: 14px; }
  .pl-rows { list-style: none; padding: 0; margin: 0 0 20px; max-width: none; }
  .pl-rows li { display: flex; flex-wrap: wrap; gap: 4px 20px; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--rule); margin: 0; max-width: none; }
  .pl-rows b { font-weight: 700; }
  .pl-verdict { padding: 16px 18px; border: 1px solid var(--ink); background: var(--paper-0); font-weight: 600; max-width: 68ch; }
  .pl-skip { position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--paper-0); padding: 10px 16px; z-index: 10; text-decoration: none; }
  .pl-skip:focus { left: 8px; top: 8px; }
  .pl-foot { margin-top: clamp(56px, 8vw, 96px); padding: 22px 0 44px; border-top: 1px solid var(--rule); font-size: 0.875rem; color: var(--ink-2); display: flex; flex-wrap: wrap; gap: 8px 32px; justify-content: space-between; }
  .pl-foot a { color: var(--ink-2); }
  .pl-foot nav a { margin-right: 16px; }
  .pl-foot p { margin: 0; }
  @media (max-width: 560px) { .pl-head { flex-wrap: wrap; } .pl-nav { gap: 14px; font-size: 0.9rem; } .pl-nav .pl-btn { min-height: 44px; padding: 0 14px; } }