/*
  API DOCS CHALLENGE (projects/2026/api-docs-challenge.md, js/apiChallenge.js, data in
  _data/apiChallenge.json). Each challenge is a panel: the goal, every endpoint as a
  checkbox, then the answer in a <details>. Without JavaScript every challenge is listed and
  the answers open by hand; with it, one challenge shows at a time behind chips, and
  "Check my answer" marks each endpoint.
*/
@layer components {

.ac-how, .ac-card, .ac-done { margin-top: 1.5rem; padding: clamp(1.1rem, 3vw, 1.75rem); }
.ac-how-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.75rem; }
.ac-how-list li { display: flex; align-items: flex-start; gap: 0.8rem; }
.ac-how-list .badge-num, .ac-steps .badge-num { width: 2rem; height: 2rem; }
.ac-how-list b, .ac-done b, .ac-outcome b { color: var(--title-color); }

/* Chips to switch challenge */
.ac-tabs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 2rem; }
.ac-tab-num { font-variant-numeric: tabular-nums; opacity: 0.7; }
.ac-tab-done { color: var(--text-link); }
.ac-tabs .chip[aria-pressed="true"] .ac-tab-done { color: inherit; }

.ac-title { margin: 0.35rem 0 1rem; color: var(--title-color); font-size: clamp(1.4rem, 3vw, 1.75rem); font-weight: 800; line-height: 1.2; }
.ac-brief { display: grid; gap: 0.75rem; margin: 0 0 1.5rem; }
@media (min-width: 720px) { .ac-brief { grid-template-columns: 1.4fr 1fr; } }
.ac-brief > div { padding: 0.9rem 1rem; border-radius: 14px; background: var(--card-solid); border: 1px solid var(--image-border-color); }
.ac-brief-want { border-left: 4px solid var(--primary-color) !important; }
.ac-brief dt { margin-bottom: 0.3rem; color: var(--muted); font-size: 0.7rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }
.ac-brief dd { margin: 0; color: var(--title-color); }

.ac-fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
.ac-options { list-style: none; margin: 0.5rem 0 0; padding: 0; display: grid; gap: 0.5rem; }
@media (min-width: 720px) { .ac-options { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.ac-options li { display: grid; }
.ac-opt {
  display: flex; align-items: flex-start; gap: 0.7rem;
  padding: 0.75rem 0.85rem; border: 1px solid var(--image-border-color); border-radius: 14px;
  background: var(--card-solid); cursor: pointer; font-size: 0.875rem;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.ac-opt:hover { border-color: rgba(var(--primary-color-rgb), 0.6); }
.ac-opt input { margin-top: 0.2rem; width: 1.05rem; height: 1.05rem; flex-shrink: 0; accent-color: var(--primary-color); }
.ac-opt:has(input:checked) { border-color: var(--primary-color); }
.ac-opt-body { display: grid; gap: 0.15rem; min-width: 0; flex: 1; }
.ac-opt-head { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; }
.ac-opt-head code { color: var(--title-color); font-size: 0.82rem; overflow-wrap: anywhere; }
.ac-opt-name { color: var(--title-color); font-weight: 700; }
.ac-opt-does { color: var(--font-color); }
.ac-opt-note { margin-top: 0.35rem; padding-left: 0.6rem; border-left: 3px solid var(--secondary-color); color: var(--title-color); }
.ac-method { padding: 0.1rem 0.45rem; border-radius: 6px; font-size: 0.65rem; font-weight: 800; letter-spacing: 0.06em; }
.ac-method-get { background: rgba(var(--primary-color-rgb), 0.18); color: var(--text-link); }
.ac-method-post { background: var(--navy); color: #fff; }
.ac-method-event { background: rgba(var(--secondary-color-rgb), 0.25); color: var(--title-color); }

/* After checking */
.ac-verdict { flex-shrink: 0; padding: 0.15rem 0.55rem; border-radius: 999px; font-size: 0.7rem; font-weight: 800; white-space: nowrap; }
.ac-opt.is-right { border-color: var(--primary-color); background: rgba(var(--primary-color-rgb), 0.08); }
.ac-opt.is-right .ac-verdict { background: var(--primary-color); color: var(--on-accent); }
.ac-opt.is-extra { border-color: var(--red); }
.ac-opt.is-extra .ac-verdict { background: var(--red); color: #fff; }
.ac-opt.is-missed { border-style: dashed; border-color: var(--primary-color); }
.ac-opt.is-missed .ac-verdict { border: 1px solid var(--primary-color); color: var(--text-link); }
.ac-card.is-checked .ac-opt:not(.is-right):not(.is-extra):not(.is-missed) { border-style: dashed; background: transparent; }

.ac-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.25rem; }
.ac-score { margin: 1rem 0 0; color: var(--title-color); font-weight: 700; }
.ac-score:empty { display: none; }

/* The answer */
.ac-answer { margin-top: 1.25rem; border-top: 1px solid var(--image-border-color); padding-top: 1rem; }
.ac-answer summary { display: inline-flex; align-items: center; gap: 0.5rem; cursor: pointer; list-style: none; color: var(--text-link); font-weight: 700; }
.ac-answer summary::-webkit-details-marker { display: none; }
.ac-answer summary i { transition: transform 0.2s ease; }
.ac-answer[open] summary i { transform: rotate(180deg); }
.ac-answer-body { margin-top: 1rem; }
.ac-steps { list-style: none; margin: 0.5rem 0 0; padding: 0; display: grid; gap: 0.6rem; }
.ac-steps > li { display: flex; gap: 0.8rem; padding: 0.85rem 1rem; border: 1px solid var(--image-border-color); border-radius: 14px; background: var(--card-solid); }
.ac-steps p { margin: 0; }
.ac-call code { color: var(--title-color); font-size: 0.85rem; font-weight: 700; overflow-wrap: anywhere; }
.ac-why { margin-top: 0.25rem !important; font-size: 0.9rem; }
.ac-returns { margin-top: 0.5rem !important; padding: 0.5rem 0.7rem; border-radius: 10px; background: var(--navy); font-size: 0.78rem; }
.ac-returns span { display: block; margin-bottom: 0.15rem; color: rgb(255 255 255 / 0.7); font-size: 0.65rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }
.ac-returns code { color: #fff; overflow-wrap: anywhere; }
.ac-outcome { margin: 1rem 0 0; padding: 0.9rem 1rem; border-left: 4px solid var(--secondary-color); border-radius: 0 14px 14px 0; background: var(--card-solid); }
.ac-next { display: inline-flex; margin-top: 1rem; }

.ac-lessons { margin: 0; padding-left: 1.2rem; display: grid; gap: 0.5rem; }

@media (prefers-reduced-motion: no-preference) {
  .ac-answer[open] .ac-answer-body { animation: ac-open 0.3s ease; }
  .ac-card.is-entering { animation: ac-open 0.35s ease; }
}
@keyframes ac-open { from { opacity: 0; transform: translateY(-6px); } }

}