:root{--background: #181a1d;--surface-1: #25282c;--surface-2: #3a3e44;--primary: #3391ff;--primary-hover: #5ca8ff;--text-primary: #e8eaed;--text-secondary: #9aa0a6;--border-color: #3a3e44;--font-family: "Manrope", "Inter", sans-serif;--slider-track: #4d5157;--toggle-bg: #4d5157;--shadow-color-1: rgba(0, 0, 0, .2);--shadow-color-2: rgba(0, 0, 0, .1);--error-bg: #4d1c20;--error-border: #f28b82;--error-text: #f28b82;--border-radius-sm: 4px;--border-radius-md: 8px;--border-radius-lg: 16px}body.light-mode{--background: #f1f5f9;--surface-1: #ffffff;--surface-2: #e2e8f0;--primary: #2563eb;--primary-hover: #3b82f6;--text-primary: #0f172a;--text-secondary: #64748b;--border-color: #cbd5e1;--slider-track: #d1d5db;--toggle-bg: #d1d5db;--error-bg: #fee2e2;--error-border: #fca5a5;--error-text: 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p.subtitle{color:var(--text-secondary);font-size:.95rem;margin:0}.editor-layout{display:flex;flex-grow:1;height:100%;overflow:hidden}.image-panel{flex-grow:1;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;padding:2rem;background-color:var(--background);overflow:auto}.image-panel-content{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.5rem}.settings-panel{width:380px;flex-shrink:0;background-color:var(--surface-1);border-left:1px solid var(--border-color);padding:1.5rem;display:flex;flex-direction:column;gap:1rem;overflow-y:auto}.upload-placeholder{width:100%;height:100%;min-height:400px;border:2px dashed var(--border-color);border-radius:var(--border-radius-md);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;cursor:pointer;transition:border-color .3s ease,background-color .3s ease;padding:2rem}.upload-placeholder:hover{border-color:var(--primary);background-color:#3391ff0d}.upload-placeholder svg{width:48px;height:48px;margin-bottom:1rem;color:var(--text-secondary)}.image-comparator{display:grid;grid-template-columns:1fr 1fr;gap:1rem;width:100%;height:100%;flex-grow:1}.image-container{position:relative;border-radius:var(--border-radius-md);overflow:hidden;background-color:var(--background);width:100%;height:100%}.image-container img{width:100%;height:100%;object-fit:contain;display:block}.image-label{position:absolute;top:.75rem;left:.75rem;background-color:#0009;color:#fff;padding:.25rem .6rem;border-radius:var(--border-radius-sm);font-size:.8rem;font-weight:500}.image-footer{width:100%;padding:.75rem;background:var(--surface-1);border-radius:var(--border-radius-md);margin-top:1rem;display:flex;align-items:center;justify-content:center;gap:1.5rem;flex-shrink:0}.footer-actions{display:flex;align-items:center;gap:1rem}.footer-actions button{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;padding:.5rem;border-radius:var(--border-radius-sm);display:flex;align-items:center;justify-content:center}.footer-actions button:hover{background-color:var(--surface-2);color:var(--text-primary)}.footer-actions button svg{width:20px;height:20px}.collapsible-section{width:100%}.collapsible-section summary{font-weight:600;font-size:.95rem;padding:.75rem;cursor:pointer;list-style:none;display:flex;align-items:center;gap:.5rem;border-radius:var(--border-radius-sm);transition:background-color .2s}.collapsible-section summary:hover{background-color:var(--surface-2)}.collapsible-section summary::-webkit-details-marker{display:none}.collapsible-section[open] summary{background-color:var(--surface-2)}.section-content{padding:1rem .75rem .5rem;display:flex;flex-direction:column;gap:1.25rem}.chevron-icon{width:16px;height:16px;transition:transform .2s}.collapsible-section[open]>summary 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h3{color:var(--primary)}.history-app{display:flex;flex-direction:column;height:100%;overflow:hidden}.history-content{padding:2rem;overflow-y:auto;flex-grow:1}.history-actions{display:flex;justify-content:flex-end;margin-bottom:1.5rem}.history-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1.5rem}.history-item{position:relative;aspect-ratio:1 / 1;border-radius:var(--border-radius-md);overflow:hidden;cursor:pointer;box-shadow:0 4px 10px var(--shadow-color-1)}.history-item img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}.history-item:hover img{transform:scale(1.05)}.history-item-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(to top,#000c,#0000 50%);opacity:0;transition:opacity .3s ease;display:flex;flex-direction:column;justify-content:flex-end;padding:1rem;color:#fff}.history-item:hover .history-item-overlay{opacity:1}.history-item-info{display:flex;flex-direction:column;gap:.25rem;margin-bottom:.5rem}.history-item-feature{font-weight:600;font-size:.9rem}.history-item-date{font-size:.8rem;opacity:.8}.history-item-buttons{display:flex;gap:.5rem}.history-item-buttons button{background-color:#fff3;border:none;color:#fff;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .2s}.history-item-buttons button:hover{background-color:#fff6}.history-item-buttons button svg{width:18px;height:18px}.note-container{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;height:100%;padding:2rem;color:var(--text-secondary)}.note-container p{max-width:400px}.lightbox-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#000c;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:2rem}.lightbox-content{position:relative;background-color:var(--surface-1);border-radius:var(--border-radius-lg);padding:2rem;max-width:90vw;max-height:90vh;display:flex;flex-direction:column;gap:1rem}.lightbox-close{position:absolute;top:1rem;right:1rem;background:var(--surface-2);border:none;border-radius:50%;width:36px;height:36px;color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:1001}.lightbox-caption{text-align:center;color:var(--text-secondary)}.reference-uploader{position:relative;width:100%;height:120px;border:2px dashed var(--border-color);border-radius:var(--border-radius-md);cursor:pointer;transition:border-color .3s ease,background-color .3s ease;overflow:hidden}.reference-uploader:hover{border-color:var(--primary);background-color:#3391ff0d}.reference-preview{width:100%;height:100%;object-fit:cover}.remove-reference-btn{position:absolute;top:8px;right:8px;width:28px;height:28px;background-color:#0009;color:#fff;border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transition:opacity .2s}.reference-uploader:hover .remove-reference-btn{opacity:1}.remove-reference-btn svg{width:18px;height:18px}.reference-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%;color:var(--text-secondary)}.reference-placeholder svg{width:24px;height:24px;margin-bottom:.5rem}.reference-placeholder span{font-size:.9rem}.info-note{display:flex;align-items:flex-start;gap:.75rem;background-color:var(--background);border:1px solid var(--border-color);padding:1rem;border-radius:var(--border-radius-md);font-size:.85rem;color:var(--text-secondary);margin-top:1rem}.info-note svg{flex-shrink:0;width:20px;height:20px;color:var(--primary);margin-top:2px}.info-note strong{color:var(--text-primary)}.login-container{display:flex;align-items:center;justify-content:center;min-height:100vh;width:100%;padding:2rem}.login-form{width:100%;max-width:400px;background-color:var(--surface-1);padding:2.5rem;border-radius:var(--border-radius-lg);border:1px solid var(--border-color);box-shadow:0 10px 25px -5px var(--shadow-color-1),0 10px 10px -5px var(--shadow-color-2)}.login-form h2{text-align:center;margin-bottom:.5rem;font-size:1.75rem;font-weight:600}.login-form .subtitle{text-align:center;color:var(--text-secondary)}.login-form .form-group{margin-bottom:1.5rem}.login-form .form-group label{display:block;margin-bottom:.5rem;font-weight:500}.login-form .form-group input{width:100%;padding:.75rem 1rem;background-color:var(--background);border:1px solid var(--border-color);border-radius:var(--border-radius-md);color:var(--text-primary);font-size:1rem;transition:border-color .2s}.login-form .form-group input:focus{outline:none;border-color:var(--primary)}@media (max-width: 1200px){.settings-panel{width:320px}}@media (max-width: 992px){.app-sidebar{width:200px}.main-content{width:calc(100% - 200px)}.editor-layout{flex-direction:column;overflow-y:auto}.settings-panel{width:100%;border-left:none;border-top:1px solid var(--border-color);max-height:50vh}.image-panel{padding:1.5rem;min-height:50vh}}@media (max-width: 768px){.app-sidebar{display:none}.main-content{width:100%}}