/**
 * LumorowLMS — Duolingo Read and Select frontend styles
 * Layout/feel matches the Duolingo DET screen; brand orange substitutes
 * Duolingo's blue accents.
 */

.llmsb-duors-block {
    background: #fff;
    border: 1px solid var(--llmsb-border);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,.05);
    margin-bottom: 2rem;
}

/* ── Header (timer + progress) ──────────────────── */
.llmsb-duors-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 22px;
    border-bottom: 1px solid var(--llmsb-border);
    background: #fff;
    gap: 16px;
}
.llmsb-duors-timer {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--llmsb-mid);
    font-size: 1rem;
}
.llmsb-duors-timer-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--llmsb-mid);
}
.llmsb-duors-timer-val {
    color: var(--llmsb-dark);
    font-weight: 800;
    font-size: 1.05rem;
    font-variant-numeric: tabular-nums;
    transition: color .15s ease;
}
.llmsb-duors-timer-label { color: var(--llmsb-muted); font-size: .9rem; }
.llmsb-duors-timer--low .llmsb-duors-timer-val { color: var(--llmsb-primary); animation: llmsb-duors-pulse .8s ease-in-out infinite; }
.llmsb-duors-timer--up  .llmsb-duors-timer-val { color: var(--llmsb-wrong); }
@keyframes llmsb-duors-pulse {
    0%,100% { transform: scale(1); }
    50%     { transform: scale(1.12); }
}

.llmsb-duors-progress {
    font-size: .9rem;
    color: var(--llmsb-muted);
    font-variant-numeric: tabular-nums;
}
.llmsb-duors-progress-cur { color: var(--llmsb-dark); font-weight: 700; }
.llmsb-duors-progress-sep { margin: 0 4px; }

.llmsb-duors-header--done .llmsb-duors-timer { visibility: hidden; }

/* ── Stage (one word + Yes/No) ──────────────────── */
.llmsb-duors-stage {
    padding: 56px 24px 64px;
    text-align: center;
    background: #fff;
}
.llmsb-duors-prompt {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--llmsb-dark);
    margin-bottom: 36px;
}
.llmsb-duors-word {
    font-size: 2.4rem;
    font-weight: 500;
    color: var(--llmsb-dark);
    margin-bottom: 44px;
    word-break: break-word;
    min-height: 1.2em;
    letter-spacing: -.01em;
}

.llmsb-duors-choices {
    display: inline-flex;
    gap: 22px;
}
.llmsb-duors-choice {
    appearance: none;
    width: 150px;
    padding: 22px 16px;
    background: #fff;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    font: inherit;
    color: var(--llmsb-dark);
    transition: background .15s ease, border-color .15s ease, transform .15s ease, box-shadow .15s ease;
    box-shadow: 0 1px 0 rgba(0,0,0,.04);
}
.llmsb-duors-choice:hover:not(:disabled) {
    border-color: var(--llmsb-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(247,114,5,.12);
}
.llmsb-duors-choice:active:not(:disabled) { transform: translateY(0); }
.llmsb-duors-choice:focus-visible {
    outline: 3px solid var(--llmsb-primary);
    outline-offset: 2px;
}
.llmsb-duors-choice.selected {
    background: var(--llmsb-primary-pale);
    border-color: var(--llmsb-primary);
}
.llmsb-duors-choice:disabled { cursor: not-allowed; opacity: .92; }

.llmsb-duors-mark {
    display: inline-flex;
    color: var(--llmsb-primary);
    line-height: 1;
}
.llmsb-duors-choice-label {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--llmsb-dark);
}

/* ── Results table (revealed at end / Check Answers) ── */
.llmsb-duors-results[hidden] { display: none; }
.llmsb-duors-results {
    padding: 24px 22px;
    border-top: 1px solid var(--llmsb-border);
    background: #fff;
}
.llmsb-duors-r-summary {
    text-align: center;
    margin-bottom: 18px;
}
.llmsb-duors-r-bignum {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--llmsb-primary);
    line-height: 1;
}
.llmsb-duors-r-bigpct {
    color: var(--llmsb-muted);
    font-size: .95rem;
    margin-top: 4px;
}
.llmsb-duors-r-tablewrap { overflow-x: auto; }
.llmsb-duors-r-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .92rem;
}
.llmsb-duors-r-table th,
.llmsb-duors-r-table td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--llmsb-border);
    text-align: left;
}
.llmsb-duors-r-table th {
    background: #f9fafb;
    color: var(--llmsb-muted);
    font-weight: 700;
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.llmsb-duors-r-n { color: var(--llmsb-muted); font-variant-numeric: tabular-nums; width: 40px; }
.llmsb-duors-r-word { font-weight: 600; color: var(--llmsb-dark); }
.llmsb-duors-r-table tr.ok  .llmsb-duors-r-mark { color: var(--llmsb-correct); font-weight: 800; }
.llmsb-duors-r-table tr.no  .llmsb-duors-r-mark { color: var(--llmsb-wrong);   font-weight: 800; }
.llmsb-duors-r-table tr.ok  .llmsb-duors-r-yours { color: var(--llmsb-correct); font-weight: 600; }
.llmsb-duors-r-table tr.no  .llmsb-duors-r-yours { color: var(--llmsb-wrong);   font-weight: 600; }
.llmsb-duors-r-none {
    color: var(--llmsb-muted);
    font-style: italic;
}

.llmsb-duors-r-deferred {
    text-align: center;
    padding: 16px 20px;
    background: var(--llmsb-primary-pale);
    border: 1px solid var(--llmsb-primary);
    border-radius: 10px;
    color: var(--llmsb-primary-dk);
    font-weight: 600;
}

/* ── Check button + score (shared pattern) ────────
   .llmsb-duors-check inherits the standard centered .llmsb-check-btn
   style from shared.css — do NOT override width here. */
.llmsb-duors-score { margin: 0 22px 22px; }

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 520px) {
    .llmsb-duors-stage { padding: 36px 16px 48px; }
    .llmsb-duors-word  { font-size: 2rem; margin-bottom: 32px; }
    .llmsb-duors-choices { gap: 14px; }
    .llmsb-duors-choice  { width: 130px; padding: 18px 12px; }
}