/* Enhanced Tool Interface Styles */

/* Tool Navigation - Enhanced */
.tool-navigation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-8);
    padding: var(--spacing-4);
    background: var(--bg-secondary);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.tool-nav-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    flex: 1;
}

.tool-nav-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-md);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.tool-nav-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-md);
}

.tool-nav-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.tool-nav-btn:hover::before {
    left: 100%;
}

.tool-nav-btn.active {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md);
    font-weight: 600;
}

.tool-nav-btn i {
    font-size: 1rem;
}

.help-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-md);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.help-btn:hover {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.help-btn i {
    font-size: 1rem;
}

/* Tool Workspace - Enhanced */
.tool-workspace {
    position: relative;
    min-height: 600px;
}

.tool-panel {
    display: none;
    background: var(--bg-secondary);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.tool-panel.active {
    display: block;
    animation: fadeInUpPanel 0.4s ease-out;
}

@keyframes fadeInUpPanel {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.tool-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-6);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-color);
}

.tool-panel-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin: 0;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tool-panel-title i {
    color: var(--primary-color);
    font-size: 1.125rem;
}

.tool-panel-actions {
    display: flex;
    gap: var(--spacing-2);
}

.tool-action-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition-md);
    position: relative;
    overflow: hidden;
}

.tool-action-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-md);
}

.tool-action-btn:hover {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.tool-action-btn:hover::before {
    left: 100%;
}

.tool-panel-content {
    padding: var(--spacing-8);
}

/* Enhanced Tool Interface Layout */
.tool-interface {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-8);
    min-height: 400px;
}

.tool-section {
    background: var(--bg-elevated);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-md);
}

.tool-section:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.tool-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--border-color);
}

.tool-section-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin: 0;
}

.tool-section-title i {
    color: var(--primary-color);
}

.tool-actions {
    display: flex;
    gap: var(--spacing-2);
}

/* Enhanced Color Picker Styles */
.color-picker-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.color-display-large {
    width: 100%;
    height: 120px;
    border-radius: var(--radius-xl);
    border: 2px solid var(--border-color);
    background: var(--primary-gradient);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-lg);
    box-shadow: var(--shadow-md);
}

.color-display-large:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.color-display-large::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: var(--transition-lg);
}

.color-display-large:hover::before {
    transform: translateX(100%);
}

.color-sliders {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.slider-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.slider-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.slider-value {
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-weight: 600;
}

.color-slider {
    width: 100%;
    height: 8px;
    border-radius: var(--radius-full);
    background: linear-gradient(to right, #ff0000, #00ff00, #0000ff);
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    box-shadow: var(--shadow-inner);
}

.color-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    border: 2px solid var(--primary-color);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition-md);
}

.color-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-lg);
}

.color-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    border: 2px solid var(--primary-color);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition-md);
}

.color-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-lg);
}

/* Enhanced Color Input Fields */
.color-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: var(--spacing-4);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.input-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.color-input {
    padding: var(--spacing-3);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-elevated);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    text-align: center;
    transition: var(--transition-md);
}

.color-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
    transform: translateY(-1px);
}

/* Enhanced Palette Display */
.palette-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.palette-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-3);
}

.palette-color {
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-md);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.palette-color:hover {
    transform: scale(1.1) translateY(-3px);
    box-shadow: var(--shadow-lg);
    z-index: 10;
    border-color: var(--primary-color);
}

.palette-color::after {
    content: attr(data-color);
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    padding: var(--spacing-1);
    text-align: center;
    opacity: 0;
    transition: var(--transition-md);
}

.palette-color:hover::after {
    opacity: 1;
}

/* Enhanced Contrast Checker */
.contrast-preview {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.contrast-sample {
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-md);
}

.contrast-sample:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contrast-sample h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-2);
}

.contrast-sample p {
    font-size: 1rem;
    line-height: 1.7;
}

.contrast-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-4);
}

.contrast-result {
    text-align: center;
    padding: var(--spacing-4);
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-md);
}

.contrast-result:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contrast-ratio {
    font-size: 1.5rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
}

.contrast-grade {
    font-size: 0.875rem;
    font-weight: 600;
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contrast-grade.aaa {
    background: var(--success-gradient);
    color: white;
}

.contrast-grade.aa {
    background: var(--warning-gradient);
    color: white;
}

.contrast-grade.fail {
    background: var(--error-color);
    color: white;
}

/* Enhanced Gradient Generator */
.gradient-preview {
    width: 100%;
    height: 200px;
    border-radius: var(--radius-xl);
    border: 2px solid var(--border-color);
    background: var(--primary-gradient);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.gradient-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.gradient-type-selector {
    display: flex;
    gap: var(--spacing-2);
    padding: var(--spacing-1);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
}

.gradient-type-btn {
    flex: 1;
    padding: var(--spacing-3);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-md);
    font-size: 0.875rem;
    font-weight: 500;
}

.gradient-type-btn.active {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
}

.color-stops {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.color-stop {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-md);
}

.color-stop:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.stop-color {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-md);
}

.stop-color:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.stop-position {
    flex: 1;
}

.stop-remove {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--error-color);
    color: white;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-md);
    box-shadow: var(--shadow-sm);
}

.stop-remove:hover {
    background: var(--error-hover);
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

/* Enhanced Tool Messages */
.tool-message {
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: 0.875rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-lg);
    transform: translateY(10px);
}

.tool-message.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.tool-message.success {
    background: rgba(150, 206, 180, 0.15);
    color: var(--success-color);
    border: 1px solid rgba(150, 206, 180, 0.3);
    box-shadow: var(--shadow-sm);
}

.tool-message.error {
    background: rgba(255, 107, 107, 0.15);
    color: var(--error-color);
    border: 1px solid rgba(255, 107, 107, 0.3);
    box-shadow: var(--shadow-sm);
}