/* The Peptide Nook – component styles.
   Provisional brand tokens: change these few values to rebrand every component. */
:root {
  --pn-ink: #2a2421;
  --pn-muted: #6b625c;
  --pn-paper: #fbf7f0;
  --pn-card: #ffffff;
  --pn-line: #e6ddd1;
  --pn-brand: #4a2545;      /* plum */
  --pn-brand-soft: #f1e8ef;
  --pn-accent: #c8811a;     /* amber */
  --pn-accent-soft: #fbf0de;
  --pn-good: #2f6b3a;
  --pn-good-soft: #e5f1e6;
  --pn-warn: #8a4b0f;
  --pn-warn-soft: #fdf0dd;
  --pn-radius: 10px;
  --pn-serif: var(--wp--preset--font-family--vollkorn, Vollkorn, Georgia, serif);
}

.pn-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.pn-small { font-size: .85em; margin-left: .4em; }

/* Disclaimer */
.pn-disclaimer {
  background: var(--pn-accent-soft); border-left: 4px solid var(--pn-accent);
  color: var(--pn-ink); padding: 12px 16px; border-radius: 6px; font-size: .92rem; margin: 16px 0;
}

/* Chips and tags */
.pn-chip {
  display: inline-block; padding: 2px 10px; margin: 2px 4px 2px 0; border-radius: 999px;
  background: var(--pn-brand-soft); color: var(--pn-brand); font-size: .85rem; text-decoration: none;
}
.pn-chip:hover { text-decoration: underline; }
.pn-chip--status { background: var(--pn-accent-soft); color: var(--pn-warn); }
.pn-chip--evidence { background: var(--pn-good-soft); color: var(--pn-good); }
.pn-tag { display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .02em; padding: 1px 8px; border-radius: 4px; margin-right: 6px; vertical-align: 1px; }
.pn-tag--human { background: var(--pn-good-soft); color: var(--pn-good); }
.pn-tag--animal { background: var(--pn-brand-soft); color: var(--pn-brand); }
.pn-tag--community { background: var(--pn-accent-soft); color: var(--pn-warn); }

/* Entry */
.pn-entry h2 { font-family: var(--pn-serif); color: var(--pn-brand); }
.pn-facts {
  background: var(--pn-paper); border: 1px solid var(--pn-line); border-radius: var(--pn-radius);
  padding: 18px 20px; margin: 0 0 24px;
}
.pn-facts__title { margin: 0 0 10px; font-size: 1.1rem; }
.pn-facts dl { margin: 0; }
.pn-facts__row { display: grid; grid-template-columns: 160px 1fr; gap: 12px; padding: 7px 0; border-top: 1px solid var(--pn-line); }
.pn-facts__row:first-child { border-top: 0; }
.pn-facts dt { color: var(--pn-muted); font-size: .9rem; }
.pn-facts dd { margin: 0; font-size: 1rem; line-height: 1.5; }
.pn-facts dt { line-height: 1.5; }
@media (max-width: 600px) { .pn-facts__row { grid-template-columns: 1fr; gap: 2px; } }

.pn-plain { background: var(--pn-brand-soft); border-radius: var(--pn-radius); padding: 16px 20px; margin: 0 0 24px; }
.pn-plain h2 { margin-top: 0; font-size: 1.15rem; }

.pn-toc { border: 1px solid var(--pn-line); border-radius: var(--pn-radius); padding: 14px 20px; margin: 0 0 28px; font-size: .95rem; }
.pn-toc ol { columns: 2; column-gap: 32px; margin: 8px 0 0; padding-left: 20px; }
@media (max-width: 600px) { .pn-toc ol { columns: 1; } }

.pn-section { margin: 0 0 32px; scroll-margin-top: 80px; }
.pn-list { padding-left: 20px; }
.pn-list li { margin: 4px 0; }
.pn-table-wrap { overflow-x: auto; }
.pn-table-wrap table { border-collapse: collapse; width: 100%; font-size: .95rem; }
.pn-table-wrap th, .pn-table-wrap td { border: 1px solid var(--pn-line); padding: 8px 10px; text-align: left; vertical-align: top; }
.pn-table-wrap th { background: var(--pn-paper); }
.pn-faq { border-bottom: 1px solid var(--pn-line); padding: 10px 0; }
.pn-faq summary { cursor: pointer; font-weight: 600; }
.pn-refs { font-size: .9rem; color: var(--pn-muted); word-break: break-word; }

/* Index */
.pn-index__controls { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 20px; }
.pn-index__controls input[type=search] { flex: 1 1 260px; }
.pn-input {
  font: inherit; padding: 9px 12px; border: 1px solid var(--pn-line); border-radius: 8px;
  background: var(--pn-card); color: var(--pn-ink); min-width: 0;
}
.pn-input:focus { outline: 2px solid var(--pn-accent); outline-offset: 1px; }
.pn-cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.pn-card { background: var(--pn-card); border: 1px solid var(--pn-line); border-radius: var(--pn-radius); padding: 16px; display: flex; flex-direction: column; }
.pn-card[hidden] { display: none; }
.pn-card__top { display: flex; justify-content: space-between; gap: 8px; align-items: center; font-size: .8rem; }
.pn-card__cat { color: var(--pn-muted); text-transform: uppercase; letter-spacing: .04em; }
.pn-card__title { font-family: var(--pn-serif); margin: 10px 0 6px; font-size: 1.2rem; }
.pn-card__title a { color: var(--pn-brand); text-decoration: none; }
.pn-card__text { color: var(--pn-muted); font-size: .92rem; margin: 0 0 12px; flex: 1; }
.pn-card__actions { display: flex; gap: 14px; font-size: .9rem; font-weight: 600; }
.pn-card__actions a { color: var(--pn-accent); }
.pn-empty { color: var(--pn-muted); }

/* Calculator */
.pn-calc { background: var(--pn-paper); border: 1px solid var(--pn-line); border-radius: 14px; padding: 24px; margin: 16px 0 24px; color: var(--pn-ink); }
.pn-calc__title { font-family: var(--pn-serif); color: var(--pn-brand); margin: 0 0 6px; }
.pn-calc__lead { margin: 0 0 20px; color: var(--pn-muted); }
.pn-calc__grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 24px; align-items: start; }
@media (max-width: 860px) { .pn-calc__grid { grid-template-columns: 1fr; } }
.pn-step { border: 0; margin: 0 0 18px; padding: 0; min-width: 0; }
.pn-step legend { font-weight: 700; display: flex; align-items: center; gap: 10px; padding: 0; }
.pn-step__n { display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--pn-brand); color: #fff; font-size: .8rem; }
.pn-step__help { margin: 4px 0 8px 34px; color: var(--pn-muted); font-size: .88rem; }
.pn-presets, .pn-custom, .pn-convert { margin-left: 34px; }
.pn-presets { display: flex; flex-wrap: wrap; gap: 6px; }
.pn-preset, .pn-toggle button {
  font: inherit; font-size: .9rem; cursor: pointer; padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--pn-line); background: var(--pn-card); color: var(--pn-ink);
}
.pn-preset:hover { border-color: var(--pn-brand); }
.pn-preset.is-active, .pn-toggle button.is-active { background: var(--pn-brand); border-color: var(--pn-brand); color: #fff; }
.pn-custom { display: flex; align-items: center; gap: 8px; margin-top: 8px; font-size: .9rem; color: var(--pn-muted); flex-wrap: wrap; }
.pn-custom .pn-input { width: 110px; padding: 6px 10px; }
.pn-toggle { display: inline-flex; }
.pn-toggle button { border-radius: 0; padding: 6px 10px; }
.pn-toggle button:first-child { border-radius: 999px 0 0 999px; }
.pn-toggle button:last-child { border-radius: 0 999px 999px 0; border-left: 0; }
.pn-convert { color: var(--pn-muted); font-size: .85rem; margin-top: 6px; }

.pn-calc__result { background: var(--pn-card); border: 1px solid var(--pn-line); border-radius: 12px; padding: 20px; position: sticky; top: 16px; }
.pn-result__kicker { margin: 0; color: var(--pn-muted); font-size: .9rem; text-transform: uppercase; letter-spacing: .05em; }
.pn-result__units { margin: 2px 0 6px; font-family: var(--pn-serif); color: var(--pn-brand); font-size: 3rem; line-height: 1.05; font-weight: 700; }
.pn-result__u { font-size: 1.2rem; font-weight: 500; }
.pn-result__sentence { margin: 0 0 12px; }
.pn-syringe svg { width: 100%; height: auto; display: block; margin: 4px 0 8px; }
.pn-s-barrel { fill: none; stroke: var(--pn-ink); stroke-width: 1.5; }
.pn-s-fill { fill: var(--pn-accent); opacity: .55; }
.pn-s-fill.is-over { fill: #b42318; }
.pn-s-tick { stroke: var(--pn-ink); stroke-width: 1; }
.pn-s-num { font-size: 11px; fill: var(--pn-muted); font-family: system-ui, sans-serif; }
.pn-s-plunger, .pn-s-thumb { fill: var(--pn-brand); }
.pn-s-rod { stroke: var(--pn-brand); stroke-width: 3; }
.pn-s-needle { fill: var(--pn-muted); }
.pn-s-needle-line { stroke: var(--pn-muted); stroke-width: 1.5; }
.pn-warn { background: var(--pn-warn-soft); color: var(--pn-warn); border-radius: 8px; padding: 10px 12px; font-size: .9rem; margin: 8px 0; }
.pn-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px 0; }
.pn-stats div { background: var(--pn-paper); border-radius: 8px; padding: 10px 12px; }
.pn-stats dt { font-size: .78rem; color: var(--pn-muted); text-transform: uppercase; letter-spacing: .04em; }
.pn-stats dd { margin: 2px 0 0; font-weight: 700; font-size: 1.05rem; }
.pn-math { margin: 8px 0 12px; font-size: .92rem; }
.pn-math summary { cursor: pointer; font-weight: 600; color: var(--pn-brand); }
.pn-math ol { padding-left: 20px; }
.pn-calc__actions { display: flex; flex-wrap: wrap; gap: 8px; }
.pn-btn { font: inherit; font-size: .9rem; cursor: pointer; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--pn-brand); background: var(--pn-brand); color: #fff; }
.pn-btn--ghost { background: transparent; color: var(--pn-brand); }
.pn-calc__note { margin: 16px 0 0; font-size: .85rem; color: var(--pn-muted); }