/* =========================================
   Older.css — Older Tests (mobile-first)
   - Filter bar (compact)
   - Subject/Exam accordion with test chips
   ========================================= */

/* Base helpers (use theme tokens from common.css) */
.muted { color: var(--muted); }
.card-like { background: var(--card); border: 1px solid var(--border); border-radius: 12px; }

/* ---------- Heading ---------- */
h2 { margin: 10px 0 12px; }

/* ---------- Filters ---------- */
.filters {
  margin: 8px 0 14px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  box-shadow: var(--shadow);
}
.filters .row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  align-items: center;
}
.filters label { font-weight: 700; font-size: .92rem; }
.filters select, .filters input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card); color: var(--text);
}
.filters .btn { width: 100%; }
.filters .btn.outline { border-color: var(--border); }

/* Tablet+ layout for filters */
@media (min-width: 641px){
  .filters .row {
    grid-template-columns: auto 180px auto 180px auto minmax(180px, 1fr) auto 120px auto auto;
    gap: 10px 12px;
  }
  .filters .btn { width: auto; }
}

/* ---------- Accordion ---------- */
.subject-accordion { display: grid; gap: 12px; }

.subject {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--card);
}
.subject-bar {
  list-style: none; cursor: pointer; user-select: none;
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; padding: 12px 14px; background: var(--surface);
  font-weight: 800; border-bottom: 1px solid var(--border);
}
.subject-bar::-webkit-details-marker { display: none; }
.subject[open] .subject-bar { background: var(--card); }
.subject-name { font-size: 1rem; }
.subject-count {
  font-size: .8rem; padding: 3px 8px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted);
}

/* Exam blocks */
.exam { border-top: 1px solid var(--border); }
.exam-bar {
  list-style: none; cursor: pointer; user-select: none;
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; padding: 10px 14px; background: var(--surface);
  font-weight: 700; color: var(--text);
  border-top: 1px solid var(--border);
}
.exam-bar::-webkit-details-marker { display: none; }
.exam-name { font-size: .95rem; }
.exam-count {
  min-width: 26px; text-align: center; font-size: .78rem;
  padding: 2px 6px; border-radius: 999px;
  background: rgba(59,130,246,.10); color: var(--accent); border: 1px solid var(--border);
}

/* Tests grid — compact chips */
.tests-grid {
  display: grid; gap: 10px; padding: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.test-chip {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  border: 1px solid var(--border); background: var(--card);
  border-radius: 10px; padding: 8px 10px;
  transition: background .2s, transform .15s, border-color .2s;
}
.test-chip:hover { background: var(--surface); transform: translateY(-1px); }
.test-chip__meta { flex: 1; min-width: 0; }
.test-chip__name {
  font-weight: 700; font-size: .95rem;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.test-chip__sub {
  font-size: .82rem; margin-top: 2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.test-chip .btn.xs {
  padding: 6px 10px; font-size: .85rem; border-radius: 8px; min-height: 36px;
}

/* ---------- Pagination ---------- */
.pagination {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
  margin: 16px 0 8px;
}
.page-btn, .page-num {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 8px 12px; border-radius: 10px; text-decoration: none;
  border: 1px solid var(--border); color: var(--text); background: var(--card);
  transition: background .2s, transform .15s;
}
.page-btn:hover, .page-num:hover { background: var(--surface); transform: translateY(-1px); }
.page-num.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 860px){
  .tests-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .subject-bar { padding: 11px 12px; }
  .exam-bar { padding: 9px 12px; }
}
@media (max-width: 640px){
  .filters { padding: 10px; }
  .subject-accordion { gap: 10px; }
  .subject { border-radius: 10px; }
  .subject-bar { padding: 10px 12px; font-size: .98rem; }
  .subject-count { font-size: .75rem; padding: 2px 6px; }
  .exam-bar { padding: 8px 12px; font-size: .92rem; }
  .exam-count { font-size: .72rem; padding: 2px 6px; }
  .tests-grid { grid-template-columns: 1fr; gap: 8px; padding: 10px; }
  .test-chip { padding: 8px 10px; }
  .test-chip__name { font-size: .93rem; }
}
@media (max-width: 380px){
  .test-chip__name { font-size: .9rem; }
}

/* ===== Accordion indicators (Subject/Exam) ===== */
.subject-bar, .exam-bar { position: relative; padding-right: 40px; }

.subject-bar::after,
.exam-bar::after{
  content: "＋";
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  font-weight: 900; opacity: .7; line-height: 1;
}

.subject[open] > .subject-bar::after { content: "－"; opacity: .9; }
.exam[open] > .exam-bar::after       { content: "－"; opacity: .9; }

.subject-bar:hover::after, .exam-bar:hover::after { opacity: 1; }
.subject-bar:focus-visible, .exam-bar:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 8px;
}

@media (max-width:640px){
  .subject-bar, .exam-bar { padding-right: 36px; }
}