/**
 * matchaxmoxie · gong xiang wu zhang ai ji xian
 *
 * da biao：W3C WCAG 2.2 AA（dui bi du、jiao dian ke jian、tiao guo lian jie、jian dong xiao、mu biao chi cun）。
 * qing liang can kao IU Rivet：qing xi xia hua xian lian jie、hou jiao dian huan、chu kong jian ju · bu shi Rivet zi zhu ti ke long。
 * Matcha / cream：surface #fff4e8 / matcha-deep #006b45 · ke du you xian。
 */

:root {
  /* Charcoal focus ring on cream · 13.6:1（non-text floor is 3:1） */
  --focus-ring: var(--focus, #222a25);
  --focus-ring-width: 3px;
  --focus-ring-offset: 3px;
  --a11y-ink: var(--ink, #222a25);
}

html {
  /* WCAG 2.2 2.4.11: sticky classroom jump bar */
  scroll-padding-top: 3.5rem;
}

@media (max-width: 640px) {
  html {
    /* dock + Cookie tab stacked at the bottom */
    scroll-padding-top: 0.5rem;
    scroll-padding-bottom: 7rem;
  }
}

/* tiao guo lian jie · jian pan you xian */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.65rem 1.1rem;
  background: #1a1a1a;
  color: #ffffff;
  border-radius: 0 0 4px 4px;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: top 0.2s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 0;
  outline: var(--focus-ring-width) solid #ffffff;
  outline-offset: 2px;
}

/* quan ju jiao dian huan · WCAG 2.4.7 / 2.4.13 */
:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
  border-radius: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* ping mu yue du qi zhuan yong wen an */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* jian dong xiao · WCAG 2.3.3 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* qing dan fu xuan kuang · mu biao chi cun yue 24×24+（WCAG 2.5.8）；Rivet shi chu kong jian ju */
.coord-checklist label {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  min-height: 2.75rem;
  padding: 0.4rem 0.15rem;
  cursor: pointer;
  color: var(--a11y-ink);
}

.coord-checklist input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
  min-width: 1.25rem;
  min-height: 1.25rem;
  flex-shrink: 0;
  margin: 0.15rem 0 0;
  accent-color: var(--accent, #006b45);
}

/* jiao yin zhuang shi bu qiang zhi zhen/jiao dian；lie biao yu yi reng kao ol */
.foot-print[aria-hidden="true"],
.foot-print[aria-hidden="true"] svg {
  pointer-events: none;
}