/* Flashcards — readable faces, short answers, no layout break */

/* Deck list is title + Review. The shared .dash-row grows a crest
   column on the account page; do not inherit that here. */
.dash-row {
    grid-template-columns: 1fr auto;
}
@media (max-width: 860px) {
    .dash-row {
        grid-template-columns: 1fr auto;
    }
    .dash-row .btn {
        grid-column: auto;
        justify-self: end;
    }
}

/* Review session — card first, chrome out of the way */
.review-page {
    max-width: 36rem;
    margin: 0 auto;
    padding: 1.15rem var(--pad) 4rem;
}
.review-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 0.65rem 1rem;
    margin-bottom: 0.55rem;
}
.review-deck {
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: -0.03em;
    color: var(--fg, var(--text));
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.review-count {
    font-family: var(--mono, ui-monospace, monospace);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--mute);
    margin: 0;
}
.review-progress {
    height: 1px;
    background: var(--line, var(--border));
    margin-bottom: 1.25rem;
}
.review-progress > span {
    display: block;
    height: 100%;
    width: 0;
    background: var(--fg, var(--text));
    transition: width 0.18s ease;
}
.review-stage {
    transition: opacity var(--ease, 0.12s ease), transform var(--ease, 0.12s ease);
}
.review-stage.is-leaving {
    opacity: 0;
    transform: translateY(4px);
}
.review-stage.is-entering {
    opacity: 0;
    transform: translateY(-4px);
}
.review-badge {
    margin: 0 0 1rem;
    padding: 0 0 0.85rem;
    border-bottom: 1px solid var(--line, var(--border));
}
.review-badge[hidden] { display: none !important; }
.review-badge-item {
    margin: 0 0 0.25rem;
    font-size: 13px;
    color: var(--fg, var(--text));
}
.review-badge-item:last-child { margin-bottom: 0; }
.review-badge-item span { color: var(--mute); }
.review-done {
    padding: 2.25rem 0 0.25rem;
    border-bottom: 1px solid var(--line, var(--border));
}
.review-done[hidden] { display: none !important; }
.review-done-kicker {
    font-family: var(--mono, ui-monospace, monospace);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--mute);
    margin: 0 0 0.55rem;
}
.review-done #review-done-copy {
    color: var(--fg, var(--text));
    margin: 0 0 1.25rem;
    letter-spacing: -0.015em;
}

.flashcard {
    background: transparent;
    border: 1px solid var(--line, var(--border));
    border-radius: 0;
    padding: 1.75rem 1.35rem;
    min-height: 168px;
    /* column: front above back (was row → answer broke layout) */
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    text-align: left;
    margin-bottom: 1rem;
}

.flashcard-face {
    font-size: 1.05rem;
    line-height: 1.45;
    color: var(--fg, var(--text));
    letter-spacing: -0.015em;
    width: 100%;
    max-width: none;
}

.flashcard-front {
    text-align: center;
    font-weight: 600;
    font-size: 1.15rem;
    line-height: 1.35;
}

.flashcard-front p { margin: 0; }

.flashcard-back {
    margin-top: 1.15rem;
    padding-top: 1.15rem;
    border-top: 1px solid var(--line, var(--border));
    text-align: left;
    font-size: 0.98rem;
    font-weight: 400;
    color: var(--fg, var(--text));
}

.flashcard-back[hidden] {
    display: none !important;
}

.flashcard-face p { margin: 0.35rem 0; }
.flashcard-face p:first-child { margin-top: 0; }
.flashcard-face p:last-child { margin-bottom: 0; }

.flashcard-face ul,
.flashcard-face ol {
    margin: 0.4rem 0 0.4rem 1.2rem;
    padding: 0;
    text-align: left;
}

.flashcard-face li { margin: 0.2rem 0; }

.flashcard-face code {
    font-family: var(--mono, ui-monospace, SFMono-Regular, Menlo, monospace);
    font-size: 0.9em;
    background: var(--soft, var(--surface-2));
    border: 1px solid var(--line, var(--border));
    padding: 0.05em 0.3em;
    word-break: break-word;
}

.flashcard-face pre {
    text-align: left;
    margin: 0.5rem 0 0;
    padding: 0.65rem 0.75rem;
    background: var(--soft, var(--surface-2));
    border: 1px solid var(--line, var(--border));
    overflow-x: auto;
    max-width: 100%;
    font-size: 0.8rem;
    line-height: 1.4;
    white-space: pre-wrap;
    word-break: break-word;
}

.flashcard-face pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: inherit;
}

.flashcard-face strong { font-weight: 700; }

.flashcard-actions { margin-bottom: 1rem; }

/* Type-your-answer (self-grade; answer never posted) */
.flashcard-type-label {
    display: block;
    margin: 1rem 0 0.35rem;
    font-family: var(--mono, ui-monospace, monospace);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--faint, var(--mute));
}
.flashcard-type-input {
    display: block;
    width: 100%;
    box-sizing: border-box;
    margin: 0 0 0.25rem;
    padding: 0.65rem 0.75rem;
    font-family: var(--mono, ui-monospace, SFMono-Regular, Menlo, monospace);
    font-size: 0.85rem;
    line-height: 1.4;
    color: var(--fg, var(--text));
    background: var(--soft, var(--surface-2));
    border: 1px solid var(--line, var(--border));
    border-radius: 0;
    resize: vertical;
    min-height: 4.5rem;
}
.flashcard-type-input:focus {
    outline: 1px solid var(--fg, var(--text));
    outline-offset: 1px;
}
.flashcard-type-input[hidden],
.flashcard-type-input:disabled {
    display: none !important;
}
.flashcard-type-hint {
    margin: 0.45rem 0 0;
    font-size: 0.8rem;
    color: var(--mute);
}
.flashcard-yours {
    margin-top: 1rem;
    padding-top: 0.85rem;
    border-top: 1px solid var(--line, var(--border));
    text-align: left;
}
.flashcard-yours[hidden] { display: none !important; }
#type-block[hidden],
#review-active[hidden] { display: none !important; }
.flashcard-yours-label,
.flashcard-back-label {
    margin: 0 0 0.35rem;
    font-family: var(--mono, ui-monospace, monospace);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--faint, var(--mute));
}
.flashcard-yours-body {
    margin: 0;
    padding: 0.65rem 0.75rem;
    font-family: var(--mono, ui-monospace, SFMono-Regular, Menlo, monospace);
    font-size: 0.8rem;
    line-height: 1.4;
    white-space: pre-wrap;
    word-break: break-word;
    background: var(--soft, var(--surface-2));
    border: 1px solid var(--line, var(--border));
    color: var(--fg, var(--text));
    /* Isolation: no HTML interpretation of user text */
    overflow-wrap: anywhere;
}
.flashcard-back .flashcard-back-label {
    margin-bottom: 0.5rem;
}

.grade-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.4rem;
}
.grade-buttons[hidden] { display: none !important; }
.grade-buttons .btn {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.7rem 0.35rem 0.55rem;
    white-space: normal;
}
.grade-name {
    font-size: 12px;
    letter-spacing: 0.04em;
}
.grade-meta {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-family: var(--mono, ui-monospace, monospace);
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.04em;
    text-transform: none;
    opacity: 0.75;
}
.grade-buttons .btn kbd {
    font: inherit;
    font-family: var(--mono, ui-monospace, monospace);
    background: none;
    border: 0;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
}
.grade-buttons .btn.is-picked {
    background: var(--fg, var(--text));
    border-color: var(--fg, var(--text));
    color: var(--bg);
    opacity: 1;
}
.grade-buttons .btn:disabled {
    opacity: 0.35;
    cursor: wait;
}

.grade-again {
    background: transparent;
    border-color: var(--err, var(--red-600));
    color: var(--err, var(--red-600));
}
.grade-hard {
    background: transparent;
    border-color: var(--warn, var(--amber-700));
    color: var(--warn, var(--amber-700));
}
.grade-good {
    background: var(--fg, var(--text));
    border-color: var(--fg, var(--text));
    color: var(--bg);
}
.grade-easy {
    background: transparent;
    border-color: var(--ok, var(--green-600));
    color: var(--ok, var(--green-600));
}
.grade-again:hover,
.grade-hard:hover,
.grade-easy:hover {
    background: var(--fg, var(--text));
    border-color: var(--fg, var(--text));
    color: var(--bg);
}
.grade-good:hover {
    background: transparent;
    color: var(--fg, var(--text));
}

@media (max-width: 480px) {
    .grade-buttons { grid-template-columns: repeat(2, 1fr); }
    .flashcard { padding: 1.25rem 1rem; }
    .flashcard-front { font-size: 1.05rem; }
    .review-bar { gap: 0.4rem 0.65rem; }
}

@media (prefers-reduced-motion: reduce) {
    .review-stage,
    .review-progress > span {
        transition: none;
    }
}