/* Demo tabs and the live demo; loaded only on pages that have them (see _includes/head.html). */
/* ---------- Demo (CSS-only tabs) ---------- */
.demo { position: relative; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.demo__radio { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
.demo__tabs { display: flex; overflow-x: auto; border-bottom: 1px solid var(--line); }
.demo__tabs label {
  flex: 0 0 auto; cursor: pointer; padding: 14px 20px; border-right: 1px solid var(--line);
  font: 500 13px var(--mono); letter-spacing: .03em; color: var(--muted); position: relative; white-space: nowrap;
}
.demo__tabs label:hover { color: var(--text); background: var(--panel-2); }
.demo__tab-num { color: var(--faint); margin-right: 6px; }
.demo__panel { display: none; padding: clamp(16px, 3vw, 28px); }
.demo__radio:nth-of-type(1):checked ~ .demo__panels > .demo__panel:nth-child(1),
.demo__radio:nth-of-type(2):checked ~ .demo__panels > .demo__panel:nth-child(2),
.demo__radio:nth-of-type(3):checked ~ .demo__panels > .demo__panel:nth-child(3),
.demo__radio:nth-of-type(4):checked ~ .demo__panels > .demo__panel:nth-child(4),
.demo__radio:nth-of-type(5):checked ~ .demo__panels > .demo__panel:nth-child(5),
.demo__radio:nth-of-type(6):checked ~ .demo__panels > .demo__panel:nth-child(6),
.demo__radio:nth-of-type(7):checked ~ .demo__panels > .demo__panel:nth-child(7),
.demo__radio:nth-of-type(8):checked ~ .demo__panels > .demo__panel:nth-child(8) { display: block; }
.demo__radio:nth-of-type(1):checked ~ .demo__tabs > label:nth-child(1),
.demo__radio:nth-of-type(2):checked ~ .demo__tabs > label:nth-child(2),
.demo__radio:nth-of-type(3):checked ~ .demo__tabs > label:nth-child(3),
.demo__radio:nth-of-type(4):checked ~ .demo__tabs > label:nth-child(4),
.demo__radio:nth-of-type(5):checked ~ .demo__tabs > label:nth-child(5),
.demo__radio:nth-of-type(6):checked ~ .demo__tabs > label:nth-child(6),
.demo__radio:nth-of-type(7):checked ~ .demo__tabs > label:nth-child(7),
.demo__radio:nth-of-type(8):checked ~ .demo__tabs > label:nth-child(8) { color: var(--text); background: var(--bg); box-shadow: inset 0 -2px 0 var(--accent); }
.demo__radio:nth-of-type(1):focus-visible ~ .demo__tabs > label:nth-child(1),
.demo__radio:nth-of-type(2):focus-visible ~ .demo__tabs > label:nth-child(2),
.demo__radio:nth-of-type(3):focus-visible ~ .demo__tabs > label:nth-child(3),
.demo__radio:nth-of-type(4):focus-visible ~ .demo__tabs > label:nth-child(4),
.demo__radio:nth-of-type(5):focus-visible ~ .demo__tabs > label:nth-child(5),
.demo__radio:nth-of-type(6):focus-visible ~ .demo__tabs > label:nth-child(6),
.demo__radio:nth-of-type(7):focus-visible ~ .demo__tabs > label:nth-child(7),
.demo__radio:nth-of-type(8):focus-visible ~ .demo__tabs > label:nth-child(8) { outline: 2px solid var(--accent); outline-offset: -2px; }

.demo__bar { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 32px; margin-bottom: 22px; }
.demo__blurb { color: var(--muted); max-width: 60ch; }
.demo__file { display: grid; gap: 2px; font: 12.5px var(--mono); color: var(--faint); text-align: right; }
.demo__file a { color: var(--accent); }
.demo__split { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 24px; margin-bottom: 26px; }
.demo__label { font: 500 11.5px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--faint); margin-bottom: 8px; }
.demo pre { margin: 0; padding: 14px 16px; overflow: auto; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); font-size: 12px; line-height: 1.55; color: var(--text); }
.demo__input { max-height: 440px; white-space: pre; }
.demo__overall { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; font: 13px var(--mono); color: var(--muted); margin-bottom: 12px; }
.demo__warning { font: 12.5px/1.5 var(--mono); color: var(--text); background: color-mix(in srgb, var(--bad) 9%, transparent); border-left: 2px solid var(--bad); padding: 10px 12px; margin-bottom: 12px; }
.demo__warning b { display: block; color: var(--bad); font-weight: 500; letter-spacing: .04em; }
.demo__stmts { display: grid; gap: 10px; }
.verdict--discrepancy, .verdict--unverifiable, .verdict--invalid, .verdict--error { color: var(--bad); }

.mini { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg); font: 12.5px var(--mono); padding: 4px 14px; }
.mini > div { display: flex; justify-content: space-between; gap: 16px; padding: 5px 0; }
.mini dt { color: var(--muted); }
.mini dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.mini .op { display: inline-block; width: 1.2em; color: var(--accent); }
.mini__head { border-bottom: 1px solid var(--line); padding: 8px 0 !important; margin-bottom: 2px; }
.mini__head dt { color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mini__sum { border-top: 1px dashed var(--line-strong); }
.mini__note dd { color: var(--faint); max-width: 70%; }
.mini--plain { margin-bottom: 12px; }
.mini--plain > div + div { border-top: 1px solid var(--line); }
.mini--plain .mini__sum { font-weight: 500; border-top: 0; }
.mini--plain .mini__sum dd { color: var(--accent); }

.demo__svg { aspect-ratio: 16 / 10; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px;
  background-color: var(--bg);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 20px 20px; }
.demo__svg svg { display: block; width: 100%; height: 100%; }
.demo__svg g { stroke: var(--text); }

.demo__table { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 18px; background: var(--bg); }
.demo__table table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.demo__table th, .demo__table td { text-align: left; padding: 9px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.demo__table tr:last-child td { border-bottom: 0; }
.demo__table th { font: 500 11.5px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--faint); white-space: nowrap; }
.demo__table td { color: var(--muted); }
.demo__table td:first-child { white-space: nowrap; font-family: var(--mono); font-size: 12.5px; }
.demo__table .num { text-align: right; font-family: var(--mono); font-size: 12.5px; color: var(--text); white-space: nowrap; font-variant-numeric: tabular-nums; }
.demo__table .neg { color: var(--muted); }
.demo__table .sub { display: block; font: 11.5px var(--mono); color: var(--faint); }
.tag { display: inline-block; margin-left: 6px; padding: 0 6px; border: 1px solid var(--line-strong); border-radius: 2px; font: 10.5px/1.6 var(--mono); color: var(--muted); }

.demo__more { border-top: 1px solid var(--line); }
.demo__more summary { cursor: pointer; padding: 12px 0; font: 500 13px var(--mono); color: var(--text); list-style: none; display: flex; gap: 12px; align-items: baseline; }
.demo__more summary::-webkit-details-marker { display: none; }
.demo__more summary::before { content: "+"; color: var(--accent); width: 1ch; }
.demo__more[open] summary::before { content: "−"; }
.demo__more summary span { color: var(--faint); font-weight: 400; font-size: 12px; }
.demo__more pre { max-height: 420px; margin-bottom: 14px; }

@media (max-width: 880px) {
  .demo__split { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 600px) {
  .demo__file { text-align: left; }
  .demo__tabs label { padding: 12px 14px; }
}

/* ---------- Live demo ("Your own file") ---------- */
.demo__tab-live { color: var(--text) !important; }
.demo__tab-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); margin-right: 6px; vertical-align: 1px; box-shadow: 0 0 0 3px var(--accent-soft); }
.try-cta { margin-top: 18px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 14px; }
.try-cta span { font-size: 13px; color: var(--faint); }

.live__nojs { color: var(--muted); }
.live__grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 24px; align-items: start; }
.live__main { display: grid; gap: 14px; }

.drop {
  position: relative; display: grid; justify-items: center; gap: 6px; text-align: center;
  padding: clamp(28px, 5vw, 44px) 20px; cursor: pointer;
  border: 1.5px dashed var(--line-strong); border-radius: var(--radius);
  background-color: var(--bg);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 20px 20px;
  transition: border-color .15s, background-color .15s;
}
.drop:hover, .drop.is-over { border-color: var(--accent); background-color: var(--accent-soft); }
.drop:focus-within { outline: 2px solid var(--accent); outline-offset: 3px; }
.drop__input { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; }
.drop__icon { width: 34px; height: 34px; position: relative; margin-bottom: 6px; }
.drop__icon::before { content: ""; position: absolute; inset: 0 5px 4px; border: 1.5px solid var(--text); border-top-right-radius: 7px; }
.drop__icon::after { content: ""; position: absolute; left: 50%; top: 9px; width: 10px; height: 10px; margin-left: -5px; border-left: 1.5px solid var(--accent); border-top: 1.5px solid var(--accent); transform: rotate(45deg); }
.drop__title { font-weight: 600; font-size: 1.1rem; }
.drop__or { color: var(--muted); font-size: 15px; }
.drop__pick { color: var(--accent); text-decoration: underline; text-underline-offset: .2em; }
.drop__meta { font: 12px var(--mono); color: var(--faint); margin-top: 6px; }
.is-busy .drop { opacity: .55; pointer-events: none; }

.option { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; color: var(--muted); cursor: pointer; }
.option b { color: var(--text); font-weight: 600; }
.option input[type="checkbox"] { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--accent); flex: none; }
.option--text { display: grid; gap: 8px; cursor: default; }
.option__hint { display: block; font-size: 13px; color: var(--faint); }
.option input[type="text"] {
  font: 14px var(--mono); color: var(--text); background: var(--bg);
  border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 10px 12px; width: 100%; max-width: 360px;
}
.option input[type="text"]:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.live__quota { font: 12.5px var(--mono); color: var(--faint); }

.assure { border: 1px solid var(--line); border-left: 2px solid var(--ok); border-radius: 0 var(--radius) var(--radius) 0; background: var(--bg); padding: 18px 20px; display: grid; gap: 12px; }
.assure__title { font: 500 11.5px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ok); }
.assure__steps { margin: 0; padding-left: 1.2em; display: grid; gap: 8px; font-size: 14px; color: var(--muted); }
.assure__steps li::marker { color: var(--ok); font: 12px var(--mono); }
.assure__note { font-size: 13px; color: var(--faint); }
.assure__note a { color: var(--accent); }

.live__status { margin-top: 22px; }
.live__status:empty { display: none; }
.live__status-title { display: flex; align-items: center; gap: 10px; font-weight: 600; }
.live__status-text { color: var(--muted); font-size: 14.5px; margin-top: 4px; max-width: 70ch; }
.live__status--done .live__status-title { color: var(--ok); }
.live__status--done .live__status-title::before { content: ""; width: 10px; height: 5px; border-left: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(-45deg) translateY(-2px); }
.spinner { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--line-strong); border-top-color: var(--accent); animation: spin .8s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 3s; } }

.live__result { margin-top: 18px; outline: none; }
.live__result:empty { display: none; }
.live__summary { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 6px 20px; margin-bottom: 12px; }
.live__summary .demo__overall { margin: 0; }
.live__file { font: 12.5px var(--mono); color: var(--faint); }
.demo__stmts--grid { grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); margin-bottom: 22px; }
.mini__bad dt, .mini__bad dd { color: var(--bad); }
.live__fineprint { font-size: 13px; color: var(--faint); margin: -6px 0 16px; }
.live__detail { font: 12.5px var(--mono); color: var(--faint); }
.live__problem { border: 1px solid var(--line); border-left: 2px solid var(--accent); border-radius: 0 var(--radius) var(--radius) 0; background: var(--bg); padding: 20px 22px; display: grid; gap: 10px; justify-items: start; max-width: 760px; }
.live__problem p { color: var(--muted); max-width: 70ch; }
.live__problem .live__fineprint { margin: 4px 0 4px; }
.live__problem-title { font-weight: 600; font-size: 1.05rem; color: var(--text) !important; }
.live__next { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px 24px; border-top: 1px solid var(--line); margin-top: 6px; padding-top: 16px; color: var(--muted); font-size: 14.5px; }
button.btn { font-family: var(--mono); cursor: pointer; }

@media (max-width: 880px) {
  .live__grid { grid-template-columns: minmax(0, 1fr); }
}