/* ============================================================
   VUTEQ USA — Collapsible list (Open Positions)
   ------------------------------------------------------------
   Matches the vuteq.co.jp visual language established in
   style.css / service-page.css:
     • 2px radii (sharp corporate corners, never rounded cards)
     • red left/top accent rule on white cards
     • navy headings, gray-700 body copy
     • uppercase, letter-spaced .08em buttons
     • translateY(-4px) + soft shadow on hover
   Load AFTER style.css and service-page.css.
   ============================================================ */

/* Token fallbacks so the file also renders standalone (previews). */
.collapse-list,
.collapse-item,
.collapse-empty {
  --c-red:      var(--red,      #c8102e);
  --c-red-dark: var(--red-dark, #9c0a23);
  --c-navy:     var(--navy,     #0b1f3a);
  --c-ink:      var(--ink,      #1a1a1a);
  --c-g900:     var(--gray-900, #2a2a2a);
  --c-g700:     var(--gray-700, #555);
  --c-g500:     var(--gray-500, #888);
  --c-g300:     var(--gray-300, #d5d5d5);
  --c-g100:     var(--gray-100, #f4f4f4);
  --c-g50:      var(--gray-50,  #fafafa);
  --c-row-h:    64px;              /* reserved height → zero CLS */
}

/* ---------- List container ---------- */
.collapse-list,
.svc-section > ul:has(> .collapse-li) {
  display: block;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Neutralize .svc-section ul li (red ▸ bullet + border-bottom) in li-mode */
.svc-section .collapse-li {
  padding: 0;
  border: 0;
  position: static;
  list-style: none;
}
.svc-section .collapse-li::before { content: none; }

/* ---------- Card ---------- */
.collapse-item {
  display: block;
  position: relative;
  background: #fff;
  border: 1px solid var(--c-g300);
  border-left: 3px solid var(--c-red);
  border-radius: 2px;
  margin-bottom: 10px;
  overflow: hidden;
  contain: layout style;
  transition: box-shadow .3s ease, transform .3s ease, border-color .2s ease;
}

.collapse-item:last-child { margin-bottom: 0; }

.collapse-item:hover {
  box-shadow: 0 10px 25px rgba(0, 0, 0, .08);
  transform: translateY(-2px);
}

.collapse-item[open] {
  box-shadow: 0 6px 20px rgba(11, 31, 58, .10);
  transform: none;
}

/* ---------- Summary row ---------- */
.collapse-head {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: var(--c-row-h);
  padding: 14px 20px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: background .2s ease;
}

.collapse-head::-webkit-details-marker { display: none; }
.collapse-head::marker { content: ""; }

.collapse-head:hover           { background: var(--c-g50); }
.collapse-item[open] .collapse-head {
  background: var(--c-g50);
  border-bottom: 1px solid var(--c-g300);
}

.collapse-head:focus-visible {
  outline: 2px solid var(--c-red);
  outline-offset: -3px;
}

.collapse-head__text {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

/* Title — mirrors .svc-card h3 / .loc-card h3 */
.collapse-title {
  color: var(--c-navy);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: .03em;
  transition: color .2s ease;
}

.collapse-head:hover .collapse-title,
.collapse-item[open] .collapse-title { color: var(--c-red); }

/* Meta line — mirrors .loc-facts dt scale */
.collapse-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--c-g500);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .06em;
  line-height: 1.5;
}

.collapse-meta__pin { flex: 0 0 auto; opacity: .8; }
.collapse-meta__pin + span { margin-left: -3px; }

/* Job-type pill — mirrors .news-tag */
.collapse-pill {
  display: inline-block;
  background: var(--c-navy);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 2px;
}

/* ---------- Indicator: +/− to match .faq summary ---------- */
.collapse-chevron {
  flex: 0 0 auto;
  display: block;
  width: 22px;
  text-align: center;
  color: var(--c-red);
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
  transition: color .2s ease;
}

.collapse-chevron > svg { display: none; }   /* hide SVG; use glyph instead */
.collapse-chevron::after { content: "+"; }
.collapse-item[open] .collapse-chevron::after { content: "–"; }

/* ---------- Body ---------- */
.collapse-body__inner { padding: 20px; }

.collapse-body p {
  margin: 0 0 10px;
  color: var(--c-g700);
  font-size: 15px;
  line-height: 1.75;
}

.collapse-body p:last-of-type { margin-bottom: 0; }

/* Smooth open/close where supported */
@supports (interpolate-size: allow-keywords) {
  :root { interpolate-size: allow-keywords; }

  .collapse-item::details-content {
    block-size: 0;
    overflow: hidden;
    opacity: 0;
    transition: block-size .3s ease, content-visibility .3s allow-discrete,
                opacity .25s ease;
  }
  .collapse-item[open]::details-content { block-size: auto; opacity: 1; }
}

/* ---------- Tags — mirrors .shift__tag--white ---------- */
.collapse-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

/* Hard reset against .svc-section ul li (red ▸, 26px pad, border) */
.svc-section .collapse-tags li,
.collapse-tags li {
  position: static;
  padding: 4px 12px;
  border: 1px solid var(--c-g300);
  border-bottom: 1px solid var(--c-g300);
  border-radius: 2px;
  background: var(--c-g100);
  color: var(--c-g700);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  line-height: 1.6;
}

.svc-section .collapse-tags li::before,
.collapse-tags li::before { content: none; }

/* ---------- Actions — mirrors .cta-band__btn ---------- */
.collapse-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--c-g300);
}

.collapse-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  min-height: 44px;
  border: 0;
  border-radius: 2px;
  background: var(--c-red);
  color: #fff;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  line-height: 1;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: all .2s ease;
}

.collapse-btn:hover {
  background: var(--c-red-dark);
  color: #fff;
}

.collapse-btn:focus-visible {
  outline: 2px solid var(--c-navy);
  outline-offset: 2px;
}

/* Site buttons are text-only — hide the icon */
.collapse-btn__arrow { display: none; }

/* Ghost — mirrors .loc-actions .cta-band__btn--ghost */
.collapse-btn--ghost {
  background: transparent;
  color: var(--c-navy);
  border: 1px solid var(--c-g300);
}

.collapse-btn--ghost:hover {
  background: var(--c-g100);
  color: var(--c-navy);
  border-color: var(--c-g300);
}

/* ---------- Empty state ---------- */
.collapse-empty {
  margin: 0;
  padding: 20px 24px;
  background: var(--c-g50);
  border: 1px solid var(--c-g300);
  border-left: 3px solid var(--c-red);
  border-radius: 2px;
  color: var(--c-g700);
  font-size: 15px;
  line-height: 1.7;
}

.collapse-empty a { color: var(--c-red); font-weight: 700; }

/* ---------- Deep-linked panel ---------- */
.collapse-item:target { border-color: var(--c-red); }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .collapse-list { --c-row-h: 58px; }

  .collapse-head       { padding: 12px 16px; gap: 14px; }
  .collapse-title      { font-size: 15px; }
  .collapse-body__inner{ padding: 16px; }

  .collapse-actions { flex-direction: column; align-items: stretch; }
  .collapse-btn     { width: 100%; }
}

/* ---------- Motion / print ---------- */
@media (prefers-reduced-motion: reduce) {
  .collapse-item,
  .collapse-head,
  .collapse-title,
  .collapse-btn,
  .collapse-item::details-content { transition: none !important; }

  .collapse-item:hover { transform: none; }
}

@media print {
  .collapse-item { break-inside: avoid; box-shadow: none; transform: none; }
  .collapse-item::details-content { block-size: auto !important; opacity: 1 !important; }
  .collapse-chevron,
  .collapse-actions { display: none; }
}