/* ============================================
   PATTERN GENERATOR - Interactive Browser-Based Tool Styles
   ============================================ */

/* Generator Panel */
.generator-panel {
    background: var(--color-cream);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.generator-header {
    margin-bottom: 20px;
    text-align: center;
}

.generator-header h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-charcoal);
    margin: 0 0 4px 0;
}

.generator-subtitle {
    font-size: 0.9rem;
    color: var(--color-charcoal-light);
    margin: 0;
}

/* Live Preview */
.generator-preview {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    max-height: 400px;
    background: #e8e8e8;
    border-radius: 8px;
    overflow: visible;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
}

.generator-preview canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    /* No border-radius - shows exact download appearance */
}

.preview-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.9);
    gap: 12px;
    z-index: 10;
}

.preview-loading span {
    font-size: 0.85rem;
    color: var(--color-charcoal-light);
}

.preview-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(125, 154, 120, 0.2);
    border-top-color: var(--color-sage);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Section Labels */
.generator-section {
    margin-bottom: 20px;
}

.generator-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-charcoal);
    margin-bottom: 8px;
}

/* Aspect Ratio Buttons */
.aspect-ratio-buttons {
    display: flex;
    gap: 8px;
}

.aspect-btn {
    flex: 1;
    padding: 10px 12px;
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-charcoal);
    cursor: pointer;
    transition: all 0.2s ease;
}

.aspect-btn:hover {
    border-color: var(--color-sage);
    background: rgba(125, 154, 120, 0.05);
}

.aspect-btn.active {
    border-color: var(--color-sage);
    background: var(--color-sage);
    color: #fff;
}

/* Scale Slider */
.generator-slider {
    width: 100%;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: #e0e0e0;
    border-radius: 4px;
    outline: none;
}

.generator-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--color-sage);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
}

.generator-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.generator-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: var(--color-sage);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.scale-value,
.rotation-value {
    font-size: 0.8rem;
    color: var(--color-sage);
    font-weight: 600;
}

.rotation-hint {
    font-size: 0.75rem;
    color: var(--color-charcoal-light);
    margin-top: 6px;
    font-style: italic;
}

/* Preset Dropdown */
.preset-dropdown-container {
    position: relative;
}

.preset-select {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.9rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background: #fff;
    color: var(--color-charcoal);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

.preset-select:hover {
    border-color: var(--color-sage);
}

.preset-select:focus {
    outline: none;
    border-color: var(--color-sage);
    box-shadow: 0 0 0 3px rgba(125, 154, 120, 0.2);
}

.preset-select optgroup {
    font-weight: 600;
    color: var(--color-charcoal);
}

.preset-select option {
    font-weight: 400;
    padding: 8px;
}

/* Dimension Inputs */
.dimension-inputs {
    display: flex;
    align-items: center;
    gap: 12px;
}

.dimension-input-group {
    flex: 1;
    position: relative;
}

.dimension-input-group label {
    position: absolute;
    top: -8px;
    left: 12px;
    font-size: 0.7rem;
    color: var(--color-charcoal-light);
    background: var(--color-cream);
    padding: 0 4px;
}

.dimension-input {
    width: 100%;
    padding: 12px 40px 12px 12px;
    font-size: 0.95rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background: #fff;
    color: var(--color-charcoal);
    text-align: center;
}

.dimension-input:focus {
    outline: none;
    border-color: var(--color-sage);
    box-shadow: 0 0 0 3px rgba(125, 154, 120, 0.2);
}

.dimension-unit {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--color-charcoal-light);
}

.dimension-separator {
    font-size: 1.2rem;
    color: var(--color-charcoal-light);
}

/* Format Toggle */
.format-toggle {
    display: flex;
    gap: 8px;
}

.format-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 12px;
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-charcoal);
}

.format-btn:hover {
    border-color: var(--color-sage);
}

.format-btn.active {
    border-color: var(--color-sage);
    background: rgba(125, 154, 120, 0.1);
}

.format-hint {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--color-charcoal-light);
}

/* Download Button */
.generator-download-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 24px;
    background: var(--color-sage);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 8px;
}

.generator-download-btn:hover {
    background: var(--color-sage-dark, #6b8866);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(125, 154, 120, 0.3);
}

.generator-download-btn:active {
    transform: translateY(0);
}

.generator-download-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.generator-download-btn svg {
    width: 20px;
    height: 20px;
}

.download-size {
    font-size: 0.8rem;
    font-weight: 400;
    opacity: 0.8;
    margin-left: 4px;
}

/* Button Spinner */
.btn-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .generator-panel {
        padding: 16px;
        border-radius: 12px;
    }
    
    .generator-header h3 {
        font-size: 1.25rem;
    }
    
    .generator-preview {
        max-height: 300px;
    }
    
    .aspect-ratio-buttons {
        flex-wrap: wrap;
    }
    
    .aspect-btn {
        min-width: calc(50% - 4px);
        flex: 0 0 calc(50% - 4px);
    }
    
    .dimension-inputs {
        flex-wrap: wrap;
    }
    
    .dimension-input-group {
        flex: 0 0 100%;
    }
    
    .dimension-separator {
        display: none;
    }
    
    .format-btn {
        padding: 10px;
    }
    
    .generator-download-btn {
        padding: 14px 20px;
    }
}

@media (max-width: 480px) {
    .generator-panel {
        padding: 12px;
    }
    
    .generator-preview {
        max-height: 250px;
    }
    
    .aspect-btn {
        padding: 8px 10px;
        font-size: 0.8rem;
    }
    
    .preset-select {
        padding: 10px 14px;
        font-size: 0.85rem;
    }
    
    .dimension-input {
        padding: 10px;
    }
}

/* ============================================
   FULLSCREEN LIGHTBOX
   ============================================ */

.generator-expand-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--color-sage);
    border-radius: 8px;
    color: var(--color-sage);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.generator-expand-btn:hover {
    background: var(--color-sage);
    color: white;
}

.generator-expand-btn svg {
    width: 16px;
    height: 16px;
}

/* Lightbox Overlay */
.generator-lightbox {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.generator-lightbox.active {
    opacity: 1;
    visibility: visible;
}

.generator-lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
}

.generator-lightbox-container {
    position: relative;
    width: 95%;
    max-width: 1400px;
    max-height: 95vh;
    background: var(--color-cream);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.generator-lightbox.active .generator-lightbox-container {
    transform: scale(1);
}

.generator-lightbox-close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 10;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.2s ease;
}

.generator-lightbox-close:hover {
    background: white;
    transform: scale(1.1);
}

.generator-lightbox-close svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-charcoal);
}

/* Lightbox Content Layout */
.generator-lightbox-content {
    display: grid;
    grid-template-columns: 1fr 360px;
    height: 90vh;
    max-height: 900px;
}

/* Preview Section */
.lightbox-preview-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    background: #f0f0f0;
    position: relative;
}

.lightbox-preview {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: calc(90vh - 140px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: #e8e8e8;
    border-radius: 8px;
    overflow: hidden;
}

.lightbox-preview canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.lightbox-pattern-name {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.95);
    padding: 8px 20px;
    border-radius: 20px;
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--color-charcoal);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* Controls Section */
.lightbox-controls-section {
    padding: 30px;
    overflow-y: auto;
    background: var(--color-cream);
    border-left: 1px solid rgba(0, 0, 0, 0.08);
}

.lightbox-controls-section h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--color-charcoal);
    margin: 0 0 24px 0;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.lightbox-controls-section .generator-section {
    margin-bottom: 20px;
}

.lightbox-controls-section .generator-download-btn {
    width: 100%;
    margin-top: 20px;
}

/* Responsive Lightbox */
@media (max-width: 1024px) {
    .generator-lightbox-content {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto;
    }
    
    .lightbox-preview-section {
        padding: 20px;
        min-height: 40vh;
    }
    
    .lightbox-controls-section {
        max-height: 50vh;
        border-left: none;
        border-top: 1px solid rgba(0, 0, 0, 0.08);
    }
}

@media (max-width: 768px) {
    .generator-lightbox-container {
        width: 100%;
        height: 100%;
        max-height: 100vh;
        border-radius: 0;
    }
    
    .lightbox-preview-section {
        padding: 15px;
        padding-top: 60px;
    }
    
    .lightbox-controls-section {
        padding: 20px;
    }
    
    .lightbox-controls-section h3 {
        font-size: 1.1rem;
        margin-bottom: 16px;
        padding-bottom: 12px;
    }
    
    .generator-lightbox-close {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
    }
}