/* Exam Coach: the hub, the mock exam and today's practice. */
.xc-ok-color, .xc-big.ok, .xc-exam b.ok, .xc-tag.ok { color: #2f8f5b; }
.xc-big.no, .xc-exam b.no, .xc-tag.no { color: #c62828; }

.xc-tabs { display: flex; gap: 6px; margin: 0 0 1.2em; flex-wrap: wrap; }
.xc-tab { min-height: 40px; padding: 0 16px; border-radius: 999px; border: 1.5px solid var(--rule); background: var(--card); color: var(--ink); font: 600 15px var(--body); cursor: pointer; }
.xc-tab[aria-selected="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.prose .xc-card { margin: 0 0 1.4em; padding: 18px 20px; background: var(--card); border: 1px solid var(--rule); border-radius: 14px; }
.prose .xc-card h2 { margin-top: 0; }
.prose .xc-card h3 { margin: 1.2em 0 0.4em; font-size: 17px; }
.prose .xc-card p:last-child { margin-bottom: 0; }
.prose .xc-big { margin: 0; font: 700 56px/1.05 var(--display); }
.prose .xc-small { font-size: 15px; }
.xc-format { font: 600 15px var(--mono); }

.xc-details summary { cursor: pointer; font-weight: 600; }
.prose .xc-los { list-style: none; padding: 0; margin: 0.8em 0 0; }
.prose .xc-lo { display: grid; grid-template-columns: 1fr 90px 44px; gap: 10px; align-items: center; padding: 6px 0; border-top: 1px solid var(--rule); font-size: 15px; line-height: 1.3; }
.xc-lo-name .q-chap-code { margin-right: 4px; }
.xc-bar { height: 8px; border-radius: 4px; background: var(--paper-2); overflow: hidden; }
.xc-fill { display: block; height: 100%; background: #c62828; }
.xc-lo.ok .xc-fill { background: #2f8f5b; }
.xc-pct { font: 600 14px var(--mono); text-align: right; }

.xc-date { display: flex; flex-wrap: wrap; gap: 8px 10px; align-items: center; margin: 0 0 0.6em; }
.xc-date label { width: 100%; font-weight: 600; }
.xc-date input { min-height: 44px; padding: 0 10px; border: 1.5px solid var(--rule); border-radius: 10px; background: var(--paper); color: var(--ink); font: 500 16px var(--body); }
.xc-date .btn { min-height: 44px; background: none; color: var(--ink); cursor: pointer; }

.prose .xc-exams { list-style: none; padding: 0; margin: 0; }
.prose .xc-exam { padding: 6px 0; border-top: 1px solid var(--rule); font-size: 15px; }
.xc-when { color: var(--ink-soft); }
.xc-tag { font: 600 12px var(--mono); text-transform: uppercase; letter-spacing: 0.05em; }
.prose .xc-rules { margin: 0.6em 0 1em; }
.xc-summary { font-weight: 600; }

/* The mock exam: the clock and the hand-in button stay in view. */
.x-bar { position: sticky; top: 64px; z-index: 6; display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; justify-content: space-between;
  margin: 0 0 12px; padding: 8px 10px 8px 16px; background: var(--card); border: 1px solid var(--rule); border-radius: 14px; box-shadow: var(--shadow); }
.x-left { font: 500 14px var(--mono); }
.x-clock { font: 700 22px var(--mono); margin-left: 4px; }
.x-bar.low .x-clock { color: #c62828; }
.x-count { font: 500 14px var(--mono); color: var(--ink-soft); }
.x-bar .btn { min-height: 40px; padding: 0 16px; cursor: pointer; }
.x-grid { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 1.4em; }
.x-grid button { width: 38px; height: 34px; border-radius: 8px; border: 1.5px solid var(--rule); background: var(--card); color: var(--ink); font: 600 14px var(--mono); cursor: pointer; }
.x-grid button.done { background: var(--blue); border-color: var(--blue); color: #fff; }
.x-closed .q-opt { pointer-events: none; }
.x-confirm { font-size: 18px; margin: 4px 0 18px !important; }
.x-dlg-row { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.x-dlg-row .btn { cursor: pointer; }
.q-score-dlg a.btn { margin-top: 18px; }

@media (max-width: 560px) {
  .prose .xc-lo { grid-template-columns: 1fr 60px 40px; }
  .x-bar { top: 58px; padding-left: 12px; }
  .x-clock { font-size: 19px; }
  .x-count { display: none; }
}
.x-bar[hidden], .x-grid[hidden], .xc-tabs[hidden] { display: none; }
.xc-length { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: end; margin: 0.4em 0 1em; }
.xc-length label { display: flex; flex-direction: column; gap: 4px; font-weight: 600; font-size: 15px; }
.xc-length input { width: 96px; min-height: 44px; padding: 0 10px; border: 1.5px solid var(--rule); border-radius: 10px; background: var(--paper); color: var(--ink); font: 500 16px var(--body); }
.xc-length[hidden] { display: none; }