/**
 * ひらがな/カタカナ変換 - 専用スタイル
 * Hiragana/Katakana Converter Tool Styles
 */

/* 変換方向選択セクション */
.convert-direction-section {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
}

.direction-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}

.direction-option {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 10px 16px;
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.direction-option:hover {
    border-color: var(--color-primary);
}

.direction-option:has(input:checked) {
    border-color: var(--color-primary);
    background: rgba(61, 90, 128, 0.05);
}

.direction-option input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    position: relative;
    cursor: pointer;
    transition: all 0.2s ease;
}

.direction-option input[type="radio"]:checked {
    border-color: var(--color-primary);
}

.direction-option input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background: var(--color-primary);
    border-radius: 50%;
}

.direction-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
}

/* 結果セクション */
.result-section {
    padding: 20px;
    border-bottom: 1px solid var(--color-border);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.result-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
}

.result-output {
    min-height: 120px;
    padding: 14px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    word-wrap: break-word;
    white-space: pre-wrap;
}

.result-output.has-content {
    color: var(--color-text);
}

.result-output.placeholder {
    color: var(--color-text-muted);
    font-style: italic;
}

/* オプションチェックボックスのスタイル */
.option-checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    position: relative;
    cursor: pointer;
    transition: all 0.2s ease;
}

.option-checkbox:checked {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.option-checkbox:checked::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 5px;
    width: 5px;
    height: 9px;
    border: solid var(--color-white);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* 対応文字一覧 */
.char-reference {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.char-group {
    padding: 12px 16px;
    background: var(--color-bg);
    border-radius: var(--radius);
}

.char-group-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: 8px;
}

.char-list {
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    letter-spacing: 0.5px;
}

/* 統計セクション強調 */
.stats-section .stat-value {
    color: var(--color-primary-dark);
}

/* アニメーション */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.result-output.updated {
    animation: fadeIn 0.3s ease;
}

/* レスポンシブ対応 */
@media (max-width: 600px) {
    .convert-direction-section {
        padding: 14px 16px;
    }

    .direction-group {
        flex-direction: column;
        gap: 10px;
    }

    .direction-option {
        padding: 12px 14px;
        justify-content: center;
    }

    .direction-label {
        font-size: 13px;
    }

    .result-section {
        padding: 16px;
    }

    .result-output {
        min-height: 100px;
        padding: 12px;
        font-size: 14px;
    }

    .options-section {
        flex-direction: column;
        gap: 12px;
        padding: 14px 16px;
    }

    .stats-section {
        justify-content: space-between;
        gap: 12px;
        padding: 14px 16px;
    }

    .stat-item {
        flex-direction: column;
        align-items: center;
        gap: 2px;
    }

    .char-group {
        padding: 10px 12px;
    }

    .char-group-title {
        font-size: 12px;
    }

    .char-list {
        font-size: 13px;
    }

    .action-section {
        flex-direction: column-reverse;
        gap: 10px;
    }

    .action-section .btn-primary,
    .action-section .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

/* ダークモード対応（将来的な拡張用） */
@media (prefers-color-scheme: dark) {
    /* 現時点ではライトモードのみ対応 */
}