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

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

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

.develop-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);
}

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

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

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

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

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

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

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

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

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

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

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

/* --- tool: keyboard-test --- */
/* 键盘测试工具样式 */
.tool-keyboard-test-full {
    padding: 20px 0;
}

.key-status-display {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 15px;
    min-height: 120px;
}

.key-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding: 8px 0;
    border-bottom: 1px solid #e9ecef;
}

.key-info:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.key-label {
    font-weight: 600;
    color: #495057;
}

.key-value {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    color: #0d6efd;
    background: #e7f3ff;
    padding: 4px 8px;
    border-radius: 4px;
    min-width: 60px;
    text-align: center;
}

.stats-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #e9ecef;
}

.stat-item:last-child {
    border-bottom: none;
}

.stat-label {
    font-weight: 500;
    color: #6c757d;
}

.stat-value {
    font-weight: bold;
    color: #198754;
    background: #d1e7dd;
    padding: 4px 8px;
    border-radius: 4px;
    min-width: 50px;
    text-align: center;
}

.keyboard-layout {
    background: #f8f9fa;
    border: 2px solid #dee2e6;
    border-radius: 12px;
    padding: 20px;
    overflow-x: auto;
}

.keyboard-row {
    display: flex;
    justify-content: center;
    margin-bottom: 8px;
    gap: 4px;
}

.keyboard-row:last-child {
    margin-bottom: 0;
}

.key {
    background: #ffffff;
    border: 1px solid #ced4da;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 12px;
    font-weight: 500;
    text-align: center;
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: default;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.key:hover {
    background: #e9ecef;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.key.active {
    background: #0d6efd;
    color: white;
    border-color: #0d6efd;
    transform: translateY(1px);
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.key.key-space {
    min-width: 200px;
}

.key.key-enter, .key.key-backspace, .key.key-tab, .key.key-caps, .key.key-shift-left, .key.key-shift-right {
    min-width: 60px;
}

.key.key-ctrl-left, .key.key-ctrl-right, .key.key-alt-left, .key.key-alt-right, .key.key-win-left, .key.key-win-right {
    min-width: 50px;
}

.key.key-esc {
    min-width: 50px;
}

.key.key-f1, .key.key-f2, .key.key-f3, .key.key-f4, .key.key-f5, .key.key-f6,
.key.key-f7, .key.key-f8, .key.key-f9, .key.key-f10, .key.key-f11, .key.key-f12 {
    min-width: 35px;
    font-size: 10px;
}

.result-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.result-item {
    text-align: center;
}

.result-label {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 8px;
}

.result-value {
    font-size: 24px;
    font-weight: bold;
}

@media (max-width: 768px) {
    .keyboard-layout {
        padding: 10px;
    }
    
    .key {
        padding: 6px 8px;
        font-size: 10px;
        min-width: 30px;
        height: 30px;
    }
    
    .key.key-space {
        min-width: 150px;
    }
    
    .key.key-enter, .key.key-backspace, .key.key-tab, .key.key-caps, .key.key-shift-left, .key.key-shift-right {
        min-width: 45px;
    }
}