.tool-fullwidth {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0;
}

/* Tool shell */
.image-tool {
    max-width: 100%;
    margin: 0 auto;
}

.image-tool.editor-section,
.editor-section.image-tool {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.image-tool .card:not(.result-card) {
    border: 1px solid var(--color-border, #e5e7eb);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.06));
    border-radius: var(--radius, 12px);
    background: var(--color-surface, #fff);
}

.image-tool .card-body {
    padding: 1.25rem 1.35rem;
}

.image-tool .card-title {
    color: var(--color-text, #1f2937);
    font-weight: 700;
    font-size: 1.05rem;
}

.image-tool .form-control,
.image-tool .form-select,
.image-tool .select-input,
.image-tool textarea {
    border-radius: 8px;
    border: 1px solid var(--color-border, #e5e7eb);
}

.image-tool .form-control:focus,
.image-tool .form-select:focus,
.image-tool textarea:focus {
    border-color: var(--color-primary, #0d9488);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.image-tool .btn-primary {
    background: var(--color-primary, #0d9488);
    border-color: var(--color-primary, #0d9488);
}

.image-tool .btn-primary:hover {
    background: var(--color-primary-hover, #0f766e);
    border-color: var(--color-primary-hover, #0f766e);
}

.image-tool .alert {
    border-radius: 10px;
}

[data-theme="dark"] .image-tool .card:not(.result-card) {
    background: var(--color-surface, #1f2937);
    border-color: var(--color-border, #374151);
}

[data-theme="dark"] .image-tool .card-title,
[data-theme="dark"] .image-tool .form-label,
[data-theme="dark"] .image-tool {
    color: var(--color-text, #f9fafb);
}

[data-theme="dark"] .image-tool .text-muted,
[data-theme="dark"] .image-tool .form-text {
    color: var(--color-text-secondary, #9ca3af) !important;
}

[data-theme="dark"] .image-tool .form-control,
[data-theme="dark"] .image-tool .form-select,
[data-theme="dark"] .image-tool textarea {
    background: #111827;
    color: var(--color-text, #f9fafb);
    border-color: var(--color-border, #374151);
}

/* --- tool: exif-viewer --- */
.tool-exif-viewer-full {
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.card-title {
    color: #495057;
    font-weight: 600;
}

#imagePreview {
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 2px dashed #dee2e6;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

#imagePreview.drag-over {
    border-color: #0d6efd;
    background-color: #e7f1ff;
    transform: scale(1.02);
}

.upload-placeholder {
    text-align: center;
    color: #6c757d;
}

#preview {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.exif-item {
    margin-bottom: 12px;
    padding: 15px;
    border-radius: 8px;
    background-color: #f8f9fa;
    transition: all 0.2s ease;
    border-left: 4px solid #0d6efd;
}

.exif-item:hover {
    background-color: #e9ecef;
    transform: translateX(5px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.exif-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 8px;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.exif-value {
    color: #212529;
    font-size: 1.1rem;
    font-weight: 500;
}

.text-muted {
    font-style: italic;
}

.accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    border-color: #667eea;
}

.accordion-button {
    font-weight: 600;
    padding: 15px 20px;
}

.accordion-body {
    padding: 20px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 12px 24px;
    font-weight: 500;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.accordion-item {
    border: 1px solid #e9ecef;
    border-radius: 8px;
    margin-bottom: 8px;
    overflow: hidden;
}

.accordion-item:first-of-type .accordion-button {
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
}

.accordion-item:last-of-type .accordion-button.collapsed {
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
}

@media (max-width: 768px) {
    .exif-item {
        margin-bottom: 10px;
        padding: 12px;
    }
    
    .exif-value {
        font-size: 1rem;
    }
    
    .accordion-button {
        padding: 12px 15px;
        font-size: 0.9rem;
    }
    
    .accordion-body {
        padding: 15px;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #0d6efd;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 成功状态 */
.success-item {
    border-left-color: #198754;
    background-color: #f8fff9;
}

/* 警告状态 */
.warning-item {
    border-left-color: #ffc107;
    background-color: #fffbf0;
}

/* 错误状态 */
.error-item {
    border-left-color: #dc3545;
    background-color: #fff5f5;
}