/* ============================================================
   PATHOLOGY RECALL · engine styles (content-agnostic)
   Matches the Arcanium practice-widget look: frosted shell,
   big rounded tap targets, token-driven colors.
   ============================================================ */

.prg-shell {
    padding: 28px;
    border-radius: 30px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 249, 252, 0.96));
    border: 1px solid rgba(15, 23, 42, 0.05);
    box-shadow: 0 18px 34px rgba(15, 23, 42, 0.06);
}

.prg-label {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 12px;
    border-radius: 999px;
    background: linear-gradient(120deg, rgba(10, 132, 255, 0.10), rgba(94, 92, 230, 0.12));
    color: var(--accent-strong);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.prg-label-spark {
    font-size: 13px;
    background: linear-gradient(120deg, #0a84ff, #5e5ce6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.prg-title {
    margin: 12px 0 4px;
    font-size: 28px;
    letter-spacing: -0.04em;
}

.prg-title-compact {
    margin: 0;
    font-size: 21px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.prg-review-flag {
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(255, 159, 10, 0.14);
    color: #92580a;
    font-size: 11.5px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* Note: paragraph rules are prefixed with .prg-shell so they outrank the
   site-wide `.topic-section-card p` (muted 15px) default. */
.prg-shell .prg-subtitle {
    margin: 0 0 18px;
    color: var(--muted);
    font-size: 15.5px;
}

/* ----- landing ----- */
.prg-landing-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.prg-landing-chip {
    padding: 7px 13px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(15, 23, 42, 0.07);
    color: var(--muted-strong);
    font-size: 12.5px;
    font-weight: 700;
}

.prg-landing-actions {
    display: flex;
}

.prg-start {
    min-width: 180px;
    justify-content: center;
}

.prg-shuffle-note {
    margin: 12px 0 0;
    color: var(--muted);
    font-size: 12.5px;
    opacity: 0.85;
}

/* ----- top bar / progress ----- */
.prg-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 14px;
}

.prg-progress {
    display: flex;
    align-items: center;
    gap: 10px;
}

.prg-progress-count {
    font-size: 13px;
    font-weight: 800;
    color: var(--muted-strong);
    letter-spacing: 0.02em;
}

.prg-dots {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.prg-dot {
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.12);
    transition: background 0.25s ease, transform 0.25s ease;
}

.prg-dot.is-hit { background: #34c759; }
.prg-dot.is-miss { background: #ff9f0a; }

.prg-dot.is-now {
    background: var(--accent);
    transform: scale(1.45);
    box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.16);
}

/* ----- question card ----- */
.prg-qcard {
    margin-top: 16px;
    padding: 24px;
    border-radius: 26px;
    background: rgba(248, 250, 252, 0.9);
    border: 1px solid rgba(15, 23, 42, 0.05);
    animation: prg-slide-in 0.28s ease both;
}

@keyframes prg-slide-in {
    from { opacity: 0; transform: translateX(14px); }
    to { opacity: 1; transform: translateX(0); }
}

.prg-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.prg-type-chip {
    padding: 5px 11px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-size: 11.5px;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.prg-diff-chip {
    padding: 5px 11px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.05);
    color: var(--muted-strong);
    font-size: 11.5px;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.prg-diff-chip.is-harder {
    background: rgba(94, 92, 230, 0.12);
    color: #4338ca;
}

.prg-streak {
    margin-left: auto;
    padding: 5px 11px;
    border-radius: 999px;
    background: rgba(255, 159, 10, 0.13);
    color: #92580a;
    font-size: 12px;
    font-weight: 800;
    animation: prg-pop 0.3s ease both;
}

@keyframes prg-pop {
    from { transform: scale(0.7); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.prg-shell .prg-stem {
    margin: 0 0 18px;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.015em;
    line-height: 1.4;
    color: var(--text);
}

/* ----- image questions (small thumb → click to enlarge) ----- */
.prg-fig {
    margin: 0 0 16px;
}

.prg-fig-thumb {
    position: relative;
    display: block;
    width: 200px;
    height: 150px;
    padding: 0;
    border: 1px solid rgba(15, 23, 42, 0.1);
    border-radius: 12px;
    overflow: hidden;
    cursor: zoom-in;
    background: rgba(15, 23, 42, 0.04);
}

.prg-fig-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.prg-fig-expand {
    position: absolute;
    right: 8px;
    bottom: 8px;
    padding: 4px 9px;
    border-radius: 999px;
    background: rgba(8, 11, 20, 0.66);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    opacity: 0;
    transition: opacity 0.18s ease;
    pointer-events: none;
}

.prg-fig-thumb:hover .prg-fig-expand,
.prg-fig-thumb:focus-visible .prg-fig-expand {
    opacity: 1;
}

.prg-img-pending {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 200px;
    height: 120px;
    border-radius: 12px;
    border: 1px dashed rgba(15, 23, 42, 0.18);
    background: rgba(15, 23, 42, 0.03);
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
}

/* ----- options (big tap targets; instant reveal) ----- */
.prg-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.prg-options-3 {
    grid-template-columns: 1fr;
}

.prg-option {
    width: 100%;
    text-align: left;
    background: rgba(255, 255, 255, 0.94);
    color: #111827;
    border: 1px solid rgba(15, 23, 42, 0.07);
    padding: 16px 18px;
    border-radius: 18px;
    font-size: 16px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease, opacity 0.18s ease;
}

.prg-option:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 12px 22px rgba(15, 23, 42, 0.08);
    border-color: rgba(10, 132, 255, 0.18);
}

.prg-option:disabled {
    cursor: default;
}

.prg-option.is-correct {
    background: linear-gradient(180deg, rgba(236, 253, 245, 0.98), rgba(220, 252, 231, 0.92));
    border-color: rgba(34, 197, 94, 0.3);
    color: #166534;
}

.prg-option.is-wrong {
    background: linear-gradient(180deg, rgba(255, 241, 242, 0.98), rgba(255, 228, 230, 0.92));
    border-color: rgba(239, 68, 68, 0.28);
    color: #991b1b;
    animation: prg-shake 0.3s ease;
}

@keyframes prg-shake {
    0%, 100% { transform: translateX(0); }
    30% { transform: translateX(-4px); }
    60% { transform: translateX(4px); }
}

.prg-option.is-dim {
    opacity: 0.45;
}

/* ----- feedback + next ----- */
.prg-feedback {
    margin-top: 16px;
    padding: 14px 16px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(15, 23, 42, 0.06);
    animation: prg-rise 0.26s ease both;
}

@keyframes prg-rise {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.prg-shell .prg-verdict {
    margin: 0 0 4px;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.01em;
}

.prg-shell .prg-verdict.is-correct { color: #15803d; }
.prg-shell .prg-verdict.is-wrong { color: #b91c1c; }

.prg-shell .prg-why {
    margin: 0;
    font-size: 14.5px;
    line-height: 1.5;
    color: var(--muted-strong);
}

.prg-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 16px;
    min-height: 4px;
}

/* ----- summary ----- */
.prg-score {
    display: flex;
    align-items: center;
    gap: 20px;
    margin: 16px 0 6px;
    flex-wrap: wrap;
}

.prg-score-ring {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 104px;
    height: 104px;
    border-radius: 999px;
    flex-shrink: 0;
    background:
        radial-gradient(closest-side, #ffffff 78%, transparent 79% 100%),
        conic-gradient(#0a84ff calc(var(--prg-pct) * 1%), rgba(15, 23, 42, 0.08) 0);
}

.prg-score-num {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
}

.prg-score-num small {
    font-size: 16px;
    font-weight: 700;
    color: var(--muted);
}

.prg-shell .prg-score-line {
    margin: 0;
    flex: 1;
    min-width: 200px;
    font-size: 16px;
    font-weight: 600;
    color: var(--muted-strong);
    line-height: 1.5;
}

.prg-shell .prg-beststreak {
    margin: 10px 0 0;
    font-size: 13.5px;
    font-weight: 700;
    color: #92580a;
}

.prg-workon {
    margin-top: 18px;
    padding: 16px 18px;
    border-radius: 18px;
    background: rgba(255, 159, 10, 0.07);
    border: 1px solid rgba(255, 159, 10, 0.2);
}

.prg-shell .prg-summary-heading {
    margin: 0 0 10px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #92580a;
}

.prg-workon-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    border-bottom: 1px solid rgba(255, 159, 10, 0.14);
}

.prg-workon-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.prg-workon-count {
    font-size: 12.5px;
    font-weight: 800;
    color: #92580a;
    white-space: nowrap;
}

.prg-shell .prg-nailed {
    margin: 14px 0 0;
    font-size: 14.5px;
    font-weight: 600;
    color: #166534;
    line-height: 1.55;
}

.prg-summary-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 22px;
}

/* ----- responsive ----- */
@media (max-width: 640px) {
    .prg-shell {
        padding: 20px;
    }

    .prg-options {
        grid-template-columns: 1fr;
    }

    .prg-title {
        font-size: 24px;
    }

    .prg-shell .prg-stem {
        font-size: 18px;
    }

    .prg-fig-thumb {
        width: 100%;
        max-width: 280px;
        height: 170px;
    }
}