/**
 * ============================================================================
 * assets/css/tool-qr-code.css - [QR 코드 생성] 전용 격리 스타일시트
 * ============================================================================
 * [설명]: QR 코드 생성 도구 전용 디자인 스타일시트
 * 스크린샷과 100% 동일한 깔끔하고 세련된 보라색 테마 UI를 제공합니다.
 */

/* 1. 메인 작업대 및 QR 뷰어 */
.tool-qr-code .qr-workspace-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 480px;
    box-shadow: var(--shadow-sm);
}

.tool-qr-code .qr-viewer-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.tool-qr-code .qr-preview-box {
    background: #ffffff;
    padding: 24px;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.tool-qr-code .qr-preview-box:hover {
    box-shadow: 0 6px 24px rgba(109, 40, 217, 0.12);
}

.tool-qr-code .qr-preview-box canvas,
.tool-qr-code .qr-preview-box svg {
    display: block;
    max-width: 100%;
    height: auto;
}

.tool-qr-code .qr-guide-text {
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
}

/* 2. 하단 액션 버튼 */
.tool-qr-code .btn-qr-save {
    background-color: #6d28d9;
    color: #ffffff;
    border: none;
    border-radius: var(--radius-md);
    padding: 13px 26px;
    font-size: 15px;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 14px rgba(109, 40, 217, 0.35);
    transition: all 0.15s ease;
}

.tool-qr-code .btn-qr-save:hover {
    background-color: #5b21b6;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(109, 40, 217, 0.45);
}

/* 3. 우측 설정 사이드바 컴포넌트 */
.qr-settings-sidebar .qr-textarea {
    width: 100%;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 10px 12px;
    font-size: 13.5px;
    font-family: 'Inter', 'Pretendard', sans-serif;
    color: var(--text-primary);
    resize: vertical;
    box-sizing: border-box;
    transition: all 0.15s ease;
}

.qr-settings-sidebar .qr-textarea:focus {
    outline: none;
    border-color: #7c3aed;
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

/* QR 색상 선택 행 */
.qr-settings-sidebar .qr-color-picker-row {
    width: 100%;
}

.qr-settings-sidebar .qr-color-chip-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 14px;
    background: #ffffff;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
}

.qr-settings-sidebar .qr-color-chip-wrap:hover {
    border-color: #94a3b8;
    background: var(--bg-muted);
}

.qr-settings-sidebar .qr-color-chip {
    width: 32px;
    height: 22px;
    border-radius: 4px;
    border: 1px solid rgba(0, 0, 0, 0.15);
    display: inline-block;
}

.qr-settings-sidebar .qr-color-label {
    flex: 1;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.qr-settings-sidebar .dropdown-arrow-icon {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
}

/* 안내 팁 텍스트 */
.qr-settings-sidebar .qr-tip-text {
    font-size: 11.5px;
    color: var(--text-muted);
    line-height: 1.5;
    margin-top: 4px;
}

/* ==========================================================================
   4. 반응형 미디어 쿼리 (모바일 & 태블릿)
   ========================================================================== */
@media (max-width: 768px) {
    .tool-qr-code .qr-workspace-card {
        padding: 20px 14px;
        min-height: auto;
    }

    .tool-qr-code .qr-preview-box {
        padding: 16px;
        max-width: 100%;
        overflow: hidden;
    }

    .tool-qr-code .qr-preview-box canvas,
    .tool-qr-code .qr-preview-box svg {
        max-width: 100% !important;
        height: auto !important;
    }

    .tool-qr-code .btn-qr-save {
        width: 100%;
        justify-content: center;
        padding: 14px;
    }
}