/* Funk-Lernsystem – Trainer-App */
[hidden] { display: none !important; }

#app { padding-bottom: 1rem; }

.screen { display: none; }
  .screen.active { display: block; }
  .card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 14px;
    box-shadow: 0 1px 3px var(--shadow);
  }
  .card h2 {
    margin-top: 0;
    font-size: 1.1rem;
  }
  .card h3 {
    margin-top: 0;
    font-size: 1rem;
  }
  .stats-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 10px 0 14px;
  }
  .stat-pill {
    background: var(--chip-bg);
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 0.8rem;
    color: var(--muted);
  }
  .stat-pill b { color: var(--fg); }
  .q-grid-wrap { margin-top: 12px; }
  .q-grid-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 14px;
    font-size: 0.72rem;
    color: var(--muted);
    margin-bottom: 6px;
  }
  .q-grid-legend span { display: inline-flex; align-items: center; gap: 4px; }
  .q-grid-legend .q-chip {
    width: 12px;
    height: 12px;
    min-width: 12px;
    padding: 0;
    font-size: 0;
    border-radius: 3px;
  }
  .q-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    max-height: 140px;
    overflow-y: auto;
    padding: 2px;
    -webkit-overflow-scrolling: touch;
  }
  .q-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.65rem;
    height: 1.65rem;
    padding: 0 4px;
    border-radius: 5px;
    font-size: 0.68rem;
    font-weight: 600;
    line-height: 1;
    border: 1px solid var(--border);
    background: var(--chip-bg);
    color: var(--muted);
  }
  .q-chip-ok {
    background: var(--green-bg);
    border-color: var(--green);
    color: var(--green);
  }
  .q-chip-bad {
    background: var(--red-bg, #fde8e8);
    border-color: var(--red);
    color: var(--red);
  }
  .q-chip-todo {
    opacity: 0.55;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 10px 18px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--fg);
    font-size: 0.95rem;
    cursor: pointer;
    text-align: center;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }
  .btn:active { transform: translateY(1px); }
  .btn-primary {
    background: var(--primary);
    color: var(--primary-fg);
    border-color: var(--primary);
    font-weight: 600;
  }
  .btn-primary:hover { background: var(--primary-hover); }
  @media (hover: hover) and (pointer: fine) {
    .btn:not(:disabled):not(.btn-primary):hover { border-color: var(--primary); }
  }
  .btn-block { width: 100%; }
  .btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
  .btn-row .btn { flex: 1 1 auto; }
  .btn-danger { color: var(--red); border-color: var(--red); background: transparent; }
  .btn-ghost { background: transparent; }
  .btn:disabled { opacity: 0.45; cursor: not-allowed; }
  select {
    width: 100%;
    min-height: 44px;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--fg);
    font-size: 0.95rem;
  }
  label.field-label {
    display: block;
    font-size: 0.8rem;
    color: var(--muted);
    margin: 10px 0 4px;
  }
  .banner {
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 0.85rem;
    margin-bottom: 12px;
  }
  .banner-warn { background: var(--amber-bg); color: var(--amber); }
  .banner-info { background: var(--chip-bg); color: var(--muted); }
  .progress-line {
    font-size: 0.8rem;
    color: var(--muted);
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    flex-wrap: wrap;
    gap: 6px;
  }
  .q-text {
    font-size: 1.08rem;
    font-weight: 600;
    margin-bottom: 14px;
    white-space: pre-wrap;
  }
  .answers { display: flex; flex-direction: column; gap: 8px; }
  .answer-btn {
    text-align: left;
    justify-content: flex-start;
    white-space: normal;
    line-height: 1.3;
    padding: 12px 14px;
  }
  .answer-btn .idx-badge {
    display: inline-block;
    min-width: 20px;
    font-weight: 700;
    margin-right: 8px;
    color: var(--muted);
  }
  .answer-btn.correct { background: var(--green-bg); border-color: var(--green); color: var(--green); }
  .answer-btn.wrong { background: var(--red-bg); border-color: var(--red); color: var(--red); }
  .answer-btn.correct .idx-badge, .answer-btn.wrong .idx-badge { color: inherit; }
  .hint-box, .answer-box {
    margin-top: 12px;
    padding: 12px;
    border-radius: 10px;
    background: var(--chip-bg);
  }
  .hint-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
  .hint-chip {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 3px 10px;
    font-size: 0.8rem;
  }
  .answer-text { white-space: pre-wrap; }
  .grade-actions { display: flex; gap: 10px; margin-top: 12px; }
  .grade-actions .btn { flex: 1; }
  .btn-correct { border-color: var(--green); color: var(--green); }
  .btn-wrong { border-color: var(--red); color: var(--red); }
  .timer-badge {
    font-variant-numeric: tabular-nums;
    font-weight: 700;
  }
  .timer-badge.low { color: var(--red); }
  .weak-item {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
  }
  .weak-item:last-child { border-bottom: none; }
  .weak-item .wq-text { font-size: 0.9rem; }
  .weak-item .wq-meta { font-size: 0.75rem; color: var(--muted); }
  .weak-item .wq-count {
    font-weight: 700;
    color: var(--red);
    white-space: nowrap;
    align-self: center;
  }
  .exam-tag {
    display: inline-block;
    font-size: 0.7rem;
    padding: 1px 7px;
    border-radius: 999px;
    background: var(--chip-bg);
    color: var(--muted);
    margin-right: 6px;
  }
  .result-summary { text-align: center; padding: 10px 0 4px; }
  .result-score { font-size: 2.4rem; font-weight: 800; margin: 6px 0; }
  .result-pass { color: var(--green); }
  .result-fail { color: var(--red); }
  .wrong-review-item { padding: 10px 0; border-bottom: 1px solid var(--border); }
  .wrong-review-item:last-child { border-bottom: none; }
  .wrong-review-item .label { font-size: 0.75rem; color: var(--muted); }
  .wrong-review-item .val-wrong { color: var(--red); }
  .wrong-review-item .val-correct { color: var(--green); }
  .footer-note { font-size: 0.75rem; color: var(--muted); text-align: center; margin-top: 24px; }
  .top-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    gap: 8px;
    flex-wrap: wrap;
  }
  #screen-cheatsheet .top-actions {
    position: sticky;
    top: 60px;
    z-index: 5;
    background: var(--bg);
    padding: 4px 0 8px;
    margin: -4px 0 10px;
  }
  .sync-status {
    font-size: 0.82rem;
    color: var(--muted);
    margin: 0 0 10px;
    line-height: 1.4;
  }
  .sync-status.ok { color: var(--green); }
  .sync-status.warn { color: var(--amber); }
  .sync-status.err { color: var(--red); }
  .kbd-hint { font-size: 0.75rem; color: var(--muted); margin-top: 10px; }
  .kbd {
    display: inline-block;
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 0 5px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    background: var(--chip-bg);
  }
  @media (min-width: 480px) {
    .start-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .start-grid .card { margin-bottom: 0; }
  }
  @media (min-width: 768px) {
    .card { padding: 18px 20px; }
    .q-text { font-size: 1.12rem; }
  }
  @media (max-width: 479px) {
    .btn-row { flex-direction: column; }
    .btn-row .btn { width: 100%; flex: 1 1 auto; }
    .grade-actions { flex-direction: column; }
    .result-score { font-size: 2rem; }
    .weak-item { flex-direction: column; align-items: flex-start; }
    .weak-item .wq-count { align-self: flex-end; }
    .kbd-hint { display: none; }
    .footer-note { display: none; }
  }
  .card-mixed { margin-top: 14px; }
  #screen-cheatsheet .card { padding: 12px 14px; }
  .md-content {
    font-size: clamp(0.88rem, 2.6vw, 0.95rem);
    line-height: 1.55;
    overflow-wrap: anywhere;
    word-break: break-word;
  }
  .md-content h1 { font-size: clamp(1.1rem, 4vw, 1.25rem); margin: 16px 0 8px; }
  .md-content h1:first-child { margin-top: 0; }
  .md-content h2 { font-size: clamp(1rem, 3.5vw, 1.08rem); margin: 18px 0 8px; }
  .md-content h3 { font-size: clamp(0.92rem, 3.2vw, 1rem); margin: 14px 0 6px; }
  .md-content p { margin: 8px 0; }
  .md-content ul, .md-content ol { margin: 6px 0 12px; padding-left: 1.25rem; }
  .md-content li { margin: 4px 0; }
  .md-content hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }
  .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 10px 0 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    max-width: 100%;
  }
  .table-wrap::after {
    content: "";
    display: block;
    height: 0;
  }
  .md-content table {
    width: 100%;
    min-width: 520px;
    border-collapse: collapse;
    font-size: clamp(0.72rem, 2.4vw, 0.82rem);
    margin: 0;
    display: table;
  }
  .md-content th, .md-content td {
    border: 1px solid var(--border);
    padding: 7px 9px;
    text-align: left;
    vertical-align: top;
    line-height: 1.35;
  }
  .md-content th { background: var(--chip-bg); font-weight: 600; white-space: nowrap; }
  .md-content code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.85em;
    background: var(--chip-bg);
    padding: 1px 5px;
    border-radius: 4px;
    word-break: break-word;
  }
  .md-content a { color: var(--primary); }