/* JLPT 퀴즈 공통 버튼 */
.jlpt-btn {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    background: rgb(15, 18, 25);
    color: #fff;
    border: 1px solid rgb(15, 18, 25);
    transition: background-color 0.15s, color 0.15s;
    text-decoration: none;
}

.jlpt-btn--outline {
    background: transparent;
    color: rgb(15, 18, 25);
}

.jlpt-btn:hover { opacity: 0.85; }

/* ---- 모드 패널 (4지선다 / 플래시카드 토글) ---- */
.quiz-mode-panel[hidden] { display: none; }

/* ---- 플래시카드 ---- */
.jlpt-flashcard {
    margin: 32px 0;
    font-family: inherit;
}

/* 카드 클릭 안내 (앞면에만 표시, 뒤집으면 함께 사라짐) */
.jlpt-flashcard--hint {
    position: absolute;
    bottom: 12px;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 12px;
    color: #9ca3af;
    pointer-events: none;
    margin: 0;
}

.jlpt-flashcard--card {
    position: relative;
    width: 100%;
    min-height: 220px;
    border: 1px solid rgb(15, 18, 25);
    cursor: pointer;
    perspective: 1000px;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.15s;
}

.jlpt-flashcard--card:hover { background: #fafafa; }
.jlpt-flashcard--card:focus-visible {
    outline: 2px solid #2337ff;
    outline-offset: 2px;
}

.jlpt-flashcard--front,
.jlpt-flashcard--back {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px;
    text-align: center;
    transition: opacity 0.2s;
}

.jlpt-flashcard--back { opacity: 0; }
.jlpt-flashcard--card.is-flipped .jlpt-flashcard--front { opacity: 0; }
.jlpt-flashcard--card.is-flipped .jlpt-flashcard--back  { opacity: 1; }

.jlpt-flashcard--term {
    font-size: 48px;
    font-weight: 700;
    color: rgb(15, 18, 25);
    margin: 0 0 8px;
    line-height: 1.2;
}

.jlpt-flashcard--reading {
    font-size: 18px;
    color: #6b7280;
    margin: 0;
}

.jlpt-flashcard--meaning {
    font-size: 28px;
    font-weight: 700;
    color: rgb(15, 18, 25);
    margin: 0 0 16px;
}

.jlpt-flashcard--example {
    font-size: 15px;
    color: #374151;
    margin: 0 0 8px;
}

.jlpt-flashcard--example-meaning {
    font-size: 13px;
    color: #9ca3af;
    margin: 0;
}

.jlpt-flashcard--controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    gap: 16px;
}

.jlpt-flashcard--progress {
    font-size: 13px;
    color: #9ca3af;
}

/* ---- 퀴즈 ---- */
.jlpt-quiz {
    margin: 32px 0;
    font-family: inherit;
}

.jlpt-quiz--progress-bar {
    width: 100%;
    height: 3px;
    background: #e5e7eb;
    margin-bottom: 32px;
}

.jlpt-quiz--progress-fill {
    display: block;
    height: 100%;
    background: rgb(15, 18, 25);
    transition: width 0.3s ease;
    width: 0%;
}

.jlpt-quiz--question {
    text-align: center;
    padding: 32px 0 24px;
    border-bottom: 1px solid #e5e7eb;
    margin-bottom: 24px;
}

.jlpt-quiz--label {
    font-size: 13px;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0 0 12px;
}

.jlpt-quiz--term {
    font-size: 48px;
    font-weight: 700;
    color: rgb(15, 18, 25);
    margin: 0 0 8px;
    line-height: 1.2;
}

.jlpt-quiz--reading {
    font-size: 18px;
    color: #6b7280;
    margin: 0;
}

.jlpt-quiz--choices {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

.jlpt-quiz--choice {
    padding: 16px;
    border: 1px solid rgb(15, 18, 25);
    background: transparent;
    color: rgb(15, 18, 25);
    font-size: 15px;
    font-family: inherit;
    cursor: pointer;
    text-align: left;
    transition: background-color 0.15s, color 0.15s;
    line-height: 1.4;
}

.jlpt-quiz--choice:hover:not(:disabled) {
    background: rgb(15, 18, 25);
    color: #fff;
}

.jlpt-quiz--choice.is-correct { background: #166534; color: #fff; border-color: #166534; }
.jlpt-quiz--choice.is-wrong   { background: #991b1b; color: #fff; border-color: #991b1b; }
.jlpt-quiz--choice:disabled   { cursor: default; opacity: 0.7; }

.jlpt-quiz--result {
    min-height: 32px;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 16px;
}

.jlpt-quiz--result.correct { color: #166534; }
.jlpt-quiz--result.wrong   { color: #991b1b; }

.jlpt-quiz--footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.jlpt-quiz--score {
    font-size: 14px;
    color: #6b7280;
}

@media (max-width: 480px) {
    .jlpt-quiz--choices { grid-template-columns: 1fr; }
    .jlpt-flashcard--term { font-size: 36px; }
    .jlpt-quiz--term { font-size: 36px; }
}