/* css/gojuon.css */
/* 仅用于 gojuon.html */

/* --- 标签页导航 --- */
.tabs-container {
    margin-top: 2em;
}
.tab-nav {
    display: flex;
    border-bottom: 2px solid var(--border-color);
}
.tab-link {
    font-size: 1.1em;
    font-weight: 500;
    padding: 10px 20px;
    cursor: pointer;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px; /* 关键：让 active 边框覆盖容器边框 */
    color: var(--text-light);
    transition: all 0.2s;
}
.tab-link:hover {
    background-color: var(--bg-light);
    color: var(--text-color);
}
.tab-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}
.tab-content {
    display: none;
    padding: 20px 5px; /* 左右留一些空间 */
}
.tab-content.active {
    display: block;
}
.tab-intro {
    font-size: 0.95em;
    color: var(--text-light);
    background-color: var(--bg-light);
    padding: 10px 15px;
    border-radius: 6px;
}

/* --- 假名学习表格 --- */
.kana-grid {
    display: grid;
    gap: 1px;
    background-color: var(--kana-border);
    border: 1px solid var(--kana-border);
    margin-bottom: 20px;
}

.kana-grid.gojuon {
    grid-template-columns: repeat(5, 1fr);
}
.kana-grid.dakuon {
    grid-template-columns: repeat(5, 1fr);
}
.kana-grid.yoon {
    grid-template-columns: repeat(3, 1fr);
}

.kana-cell {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    background-color: var(--kana-bg);
    padding: 10px 4px;
    min-height: 50px;
    cursor: pointer;
    transition: all 0.15s ease-out;
    user-select: none;
}
.kana-cell:hover {
    background-color: var(--kana-hover-bg);
}

.kana-cell .kana-main {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25em;
}
.kana-cell .kana-h {
    font-size: 1.6em;
    font-weight: 500;
    color: var(--text-kana);
    line-height: 1.1;
}
.kana-cell .kana-k {
    font-size: 1.6em;
    font-weight: 400;
    color: var(--text-kana);
    line-height: 1.1;
}
.kana-cell .kana-r {
    font-size: 0.9em;
    color: var(--text-light);
}

.kana-cell.empty {
    background-color: var(--bg-light);
    cursor: default;
}
.kana-cell.empty:hover {
    background-color: var(--bg-light);
}

.kana-cell.special {
    cursor: default;
}
.kana-cell.special .kana-h,
.kana-cell.special .kana-k,
.kana-cell.special .kana-r {
    color: #aaa;
}
.kana-cell.special:hover {
    background-color: var(--kana-bg);
}


/* --- 测验页面 --- */
.quiz-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 10px;
}
.quiz-options {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px 25px;
    margin-bottom: 20px;
}
.option-group {
    margin-bottom: 25px;
}
.option-group strong {
    display: block;
    margin-bottom: 10px;
    font-size: 1.1em;
}
.option-group label {
    margin-right: 15px;
    cursor: pointer;
    font-size: 1.05em;
}

.scope-category {
    margin-bottom: 20px;
}
.scope-category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 10px;
    margin-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}
.scope-category-header strong {
    font-size: 1.05em;
    margin-bottom: 0;
}
.scope-toggle-all {
    font-size: 0.95em;
    font-weight: 500;
}
.scope-toggle-all input {
    margin-right: 4px;
    vertical-align: middle;
}

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 8px;
}
.scope-label {
    display: block;
    padding: 6px 10px;
    border-radius: 5px;
    transition: background-color 0.2s;
    font-size: 1.0em;
    user-select: none;
}
.scope-label:hover {
    background-color: #e9ecef;
}
.scope-label input {
    margin-right: 6px;
    vertical-align: middle;
}

p.feedback-warning {
    color: var(--wrong-color);
    font-weight: 500;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

/* 测验进行中 */
.quiz-stats {
    display: flex;
    justify-content: space-between;
    font-size: 1.2em;
    padding: 10px;
    background-color: var(--bg-light);
    border-radius: 6px;
    margin-bottom: 20px;
}
.quiz-stats strong {
    color: var(--text-kana);
}
.quiz-display {
    text-align: center;
    margin: 30px 0;
}
.kana-prompt {
    font-size: 7em;
    font-weight: 500;
    line-height: 1.2;
    color: var(--text-kana);
    padding: 20px;
}
.quiz-input-area {
    position: relative;
    margin-bottom: 20px;
}
#quiz-input {
    width: 100%;
    font-size: 1.4em;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    text-align: center;
    box-sizing: border-box;
    outline: none;
    transition: border-color 0.2s;
}
#quiz-input:focus {
    border-color: var(--primary-color);
}
#quiz-input.correct {
    border-color: var(--correct-color);
    background-color: #f0fff4;
}
#quiz-input.wrong {
    border-color: var(--wrong-color);
    background-color: #fff0f0;
}
#quiz-feedback {
    font-size: 1.1em;
    font-weight: 500;
    text-align: center;
    padding: 10px;
    margin-top: 10px;
    border-radius: 6px;
}
#quiz-feedback.correct {
    color: var(--correct-color);
    background-color: #f0fff4;
}
#quiz-feedback.wrong {
    color: var(--wrong-color);
    background-color: #fff0f0;
}
.feedback-hidden {
    display: none;
}

.quiz-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

/* 测验总结 */
.summary-score {
    font-size: 1.2em;
    text-align: center;
    padding: 20px;
    background-color: var(--bg-light);
    border-radius: 8px;
    margin-bottom: 20px;
}
#wrong-answers-container {
    margin-bottom: 20px;
}
#wrong-answers-list {
    list-style-type: none;
    padding-left: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
}
#wrong-answers-list li {
    font-size: 1.1em;
    padding: 10px;
    background-color: #fff8f8;
    border: 1px solid #f0c0c0;
    border-radius: 6px;
    text-align: center;
}
#wrong-answers-list li .kana-h,
#wrong-answers-list li .kana-k {
    font-size: 1.4em;
    font-weight: 500;
    margin-right: 5px;
}


/* --- 五十音页面 (移动端) --- */
@media (max-width: 600px) {
    /* 假名表格 */
    .kana-cell {
        min-height: 45px;
        padding: 6px 2px;
    }
    .kana-cell .kana-h {
        font-size: 1.2em; /* 减小字体 */
    }
    .kana-cell .kana-k {
        font-size: 1.2em; /* 减小字体 */
    }
    .kana-cell .kana-r {
        font-size: 0.8em;
    }

    /* 测验选项 */
    .checkbox-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    .scope-label {
        padding: 5px 8px;
    }
    .scope-category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    /* 测验 */
    .kana-prompt {
        font-size: 5em;
    }
    #quiz-input {
        font-size: 1.2em;
        padding: 12px;
    }
    .btn-primary, .btn-secondary, .btn-danger {
        font-size: 1em;
        padding: 10px 15px;
    }
    .quiz-actions {
        flex-direction: column;
        gap: 10px;
    }
    .quiz-actions button {
        width: 100%;
        margin: 0;
    }
}