/* Theme Popup System - Clean and Modern */

/* Theme Icon in Page Titles */
.theme-icon {
    color: #667eea;
    cursor: pointer;
    font-size: 1.2rem;
    opacity: 0.7;
    transition: all 0.3s ease;
    margin-left: 10px;
    padding: 8px;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.1);
}

.theme-icon:hover {
    opacity: 1;
    transform: scale(1.1);
    background: rgba(102, 126, 234, 0.2);
    color: #5a6fd8;
}

/* Popup Container */
.theme-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: none;
}

.theme-popup-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.theme-popup-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    width: 95%;
    max-width: 900px;
    max-height: 85vh;
    overflow-y: auto;
    animation: popupSlideIn 0.3s ease-out;
}

@keyframes popupSlideIn {
    from {
        opacity: 0;
        transform: translate(-50%, -60%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

/* Header */
.theme-popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px 0 25px;
    border-bottom: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 16px 16px 0 0;
    flex-wrap: wrap;
    gap: 15px;
}

.theme-popup-header h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.theme-popup-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 18px;
    font-weight: bold;
    padding: 0;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.theme-popup-close:hover {
    background: rgba(239, 68, 68, 0.3);
    color: #fef2f2;
    transform: scale(1.1);
}

/* Tab System */
.theme-tabs {
    display: flex;
    gap: 5px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    padding: 5px;
    margin: 15px 0;
}

.tab-btn {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.tab-btn.active {
    background: white;
    color: #667eea;
    font-weight: 600;
}

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Body */
.theme-popup-body {
    padding: 25px;
}

.theme-section {
    margin-bottom: 30px;
}

.theme-section h4 {
    margin: 0 0 15px 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: #374151;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Theme Cards */
.theme-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.theme-card {
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    background: #f9fafb;
}

.theme-card:hover {
    border-color: #667eea;
    background: #f0f4ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

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

.theme-name {
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 1rem;
}

.theme-colors-preview {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-bottom: 8px;
}

.color-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.theme-description {
    font-size: 0.85rem;
    opacity: 0.8;
    margin: 0;
}

/* Color Grid */
.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.color-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.color-item label {
    font-weight: 500;
    font-size: 0.9rem;
    color: #374151;
}

.color-input {
    width: 60px;
    height: 60px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s ease;
}

.color-input:hover {
    transform: scale(1.05);
}

/* Typography Controls */
.typography-controls {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    align-items: end;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.control-group label {
    font-weight: 500;
    font-size: 0.9rem;
    color: #374151;
}

.font-select {
    padding: 10px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    background: white;
    font-size: 0.9rem;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.font-select:focus {
    outline: none;
    border-color: #667eea;
}

.size-slider {
    width: 100%;
    height: 6px;
    background: #e5e7eb;
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.size-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: #667eea;
    border-radius: 50%;
    cursor: pointer;
}

/* Accessibility Controls */
.accessibility-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 0.9rem;
    color: #374151;
    padding: 8px 12px;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.checkbox-label:hover {
    background: #f3f4f6;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #667eea;
    cursor: pointer;
}

.checkmark {
    width: 18px;
    height: 18px;
    background: #e5e7eb;
    border-radius: 4px;
    position: relative;
    transition: background 0.2s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: #667eea;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: "✓";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* Plot-Specific Sections */
.plot-types-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.plot-type-section {
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    padding: 20px;
    background: #f9fafb;
    transition: all 0.2s ease;
}

.plot-type-section:hover {
    border-color: #667eea;
    background: #f0f4ff;
}

.plot-type-section h5 {
    margin: 0 0 15px 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: #374151;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid #e5e7eb;
    padding-bottom: 10px;
}

.plot-controls {
    display: grid;
    grid-template-columns: 1fr 280px; /* controls | preview */
    gap: 20px;
    align-items: stretch;
}

/* Group color + settings in first column */
.plot-config {
    display: grid;
    grid-auto-rows: min-content;
    gap: 16px;
}

.plot-preview-pane {
    align-self: stretch;
}

/* Color Palette Controls */
.color-palette-section label {
    font-weight: 500;
    color: #374151;
    margin-bottom: 8px;
    display: block;
}

.color-palette {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.plot-color {
    width: 40px;
    height: 40px;
    border: 3px solid #fff;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all 0.2s ease;
}

.plot-color:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.add-color-btn {
    width: 40px;
    height: 40px;
    border: 2px dashed #9ca3af;
    border-radius: 50%;
    background: transparent;
    color: #6b7280;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.add-color-btn:hover {
    border-color: #667eea;
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

/* Plot Settings */
.plot-settings {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.setting-item label {
    font-weight: 500;
    color: #374151;
    min-width: 80px;
    margin: 0;
}

.opacity-slider, .marker-size-slider, .line-width-slider {
    flex: 1;
    height: 6px;
    background: #e5e7eb;
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.opacity-slider::-webkit-slider-thumb, 
.marker-size-slider::-webkit-slider-thumb, 
.line-width-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: #667eea;
    border-radius: 50%;
    cursor: pointer;
}

.value-display {
    font-weight: 600;
    color: #667eea;
    min-width: 30px;
    text-align: center;
}

.colorscale-select {
    padding: 8px 12px;
    border: 2px solid #e5e7eb;
    border-radius: 6px;
    background: white;
    font-size: 0.9rem;
    cursor: pointer;
    flex: 1;
}

.colorscale-select:focus {
    outline: none;
    border-color: #667eea;
}

/* Global Settings */
.setting-group {
    margin-bottom: 25px;
    padding: 20px;
    background: #f9fafb;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
}

.setting-group h5 {
    margin: 0 0 15px 0;
    font-size: 1rem;
    font-weight: 600;
    color: #374151;
    border-bottom: 1px solid #e5e7eb;
    padding-bottom: 8px;
}

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

/* Preview Section */
.preview-section {
    margin: 25px 0;
    padding: 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 12px;
    border: 2px solid #e2e8f0;
}

.preview-container h5 {
    margin: 0 0 15px 0;
    font-size: 1rem;
    font-weight: 600;
    color: #374151;
    display: flex;
    align-items: center;
    gap: 8px;
}

.preview-plots {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.mini-plot {
    background: white;
    border-radius: 8px;
    padding: 15px;
    border: 1px solid #e5e7eb;
    height: 140px;
    position: relative;
    overflow: hidden;
}

.plot-title {
    font-size: 0.8rem;
    font-weight: 500;
    color: #6b7280;
    margin-bottom: 10px;
    text-align: center;
}

.preview-dots, .preview-shapes, .preview-grid {
    position: relative;
    width: 100%;
    height: 90px;
}

/* Reset Button */
.reset-btn {
    background: #f59e0b;
    color: white;
}

.reset-btn:hover {
    background: #d97706;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

/* Action Buttons */
.theme-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e5e7eb;
}

.theme-btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 120px;
    justify-content: center;
}


.apply-btn {
    background: #10b981;
    color: white;
}

.apply-btn:hover {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.save-btn {
    background: #667eea;
    color: white;
}

.save-btn:hover {
    background: #5a6fd8;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* Message */
.theme-message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 8px;
    color: white;
    font-weight: 500;
    z-index: 10001;
    display: none;
    animation: messageSlideIn 0.3s ease-out;
}

.theme-message.success {
    background: #10b981;
}

.theme-message.error {
    background: #ef4444;
}

.theme-message.info {
    background: #3b82f6;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .theme-popup-content {
        width: 95%;
        margin: 10px;
        max-height: 90vh;
        max-width: none;
    }
    
    .theme-popup-header {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }
    
    .theme-tabs {
        order: 2;
        margin: 10px 0;
    }
    
    .tab-btn {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
    
    .theme-cards {
        grid-template-columns: 1fr;
    }
    
    .color-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .typography-controls {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .plot-controls {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .color-palette {
        justify-content: center;
    }
    
    .preview-plots {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .setting-group {
        padding: 15px;
    }
    
    .theme-actions {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .theme-btn {
        flex: 1;
        min-width: 120px;
    }
}

@media (max-width: 480px) {
    .theme-popup-body {
        padding: 15px;
    }
    
    .theme-actions {
        flex-direction: column;
    }
    
    .theme-btn {
        width: 100%;
    }
    
    .plot-type-section {
        padding: 15px;
    }
    
    .color-palette {
        gap: 6px;
    }
    
    .plot-color {
        width: 35px;
        height: 35px;
    }
    
    .add-color-btn {
        width: 35px;
        height: 35px;
    }
}