:root{--font-family: "Inter", system-ui, Avenir, Helvetica, Arial, sans-serif;--color-bg: #08090A;--color-surface: #121417;--gradient-primary: linear-gradient(135deg, #5E6AD2 0%, #A259FF 100%);--gradient-bg: radial-gradient(circle at 50% 0%, rgba(94, 106, 210, .15), transparent 60%);--gradient-text: linear-gradient(to right, #E0E7FF, #A259FF);--color-primary: #5E6AD2;--color-primary-hover: #4b55aa;--color-text: #F7F8F8;--color-text-secondary: #8A8F98;--color-border: rgba(255, 255, 255, .08);--glass-bg: rgba(255, 255, 255, .02);--glass-border: 1px solid rgba(255, 255, 255, .06);--glass-shadow: 0 4px 24px rgba(0, 0, 0, .4);--backdrop-blur: blur(12px);--spacing-xs: .5rem;--spacing-sm: .75rem;--spacing-md: 1.25rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px}:root[data-theme=light]{--color-bg: #F2F4F7;--color-surface: #FFFFFF;--gradient-bg: radial-gradient(circle at 50% 0%, rgba(94, 106, 210, .05), transparent 70%);--gradient-text: linear-gradient(to right, #4F46E5, #9333EA);--color-primary: #4F46E5;--color-primary-hover: #4338CA;--color-text: #111827;--color-text-secondary: #6B7280;--color-border: rgba(0, 0, 0, .06);--glass-bg: rgba(255, 255, 255, .75);--glass-border: 1px solid rgba(255, 255, 255, .8);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .04)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background:var(--color-bg);color:var(--color-text);min-height:100vh;display:flex;flex-direction:column;background-image:var(--gradient-bg);background-attachment:fixed}#root{width:100%;min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:var(--spacing-lg)}button{cursor:pointer;border:none;font-family:inherit}input,select{font-family:inherit}.app-container{width:100%;height:100vh;overflow:hidden;display:flex;justify-content:center;padding:0}.app-content{width:100%;max-width:1600px;height:100%;display:grid;grid-template-columns:400px 1fr;grid-template-rows:100%;gap:0;align-items:stretch}.left-panel{height:100%;overflow-y:auto;padding:var(--spacing-lg);border-right:1px solid var(--color-border);display:flex;flex-direction:column;gap:var(--spacing-lg);background:#0003}:root[data-theme=light] .left-panel{background:radial-gradient(circle at 50% 50%,rgba(255,255,255,.03) 0%,transparent 70%)}.right-panel{height:100%;overflow:hidden;padding:var(--spacing-lg);display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 50%,rgba(255,255,255,.03) 0%,transparent 70%)}.app-header{text-align:left;display:flex;flex-direction:column;gap:var(--spacing-xs)}.app-header h1{margin-bottom:var(--spacing-xs)}.input-section{display:flex;flex-direction:column;gap:var(--spacing-md)}.empty-state{color:var(--color-text-secondary);font-size:1.2rem;text-align:center;opacity:.5}@media(max-width:900px){.app-content{grid-template-columns:1fr;overflow-y:auto}.app-container{height:auto;min-height:100vh;overflow:visible}.left-panel{height:auto;border-right:none;border-bottom:1px solid var(--color-border)}.right-panel{height:600px}}.settings-panel{display:flex;justify-content:center;padding:var(--spacing-md);background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);-webkit-backdrop-filter:var(--backdrop-blur);backdrop-filter:var(--backdrop-blur)}.setting-group{display:flex;align-items:center;gap:var(--spacing-md)}.setting-group label{font-weight:500;color:var(--color-text-secondary)}.toggle-group{display:flex;background:#00000080;padding:4px;border-radius:var(--radius-md)}:root[data-theme=light] .toggle-group{background:#ffffffe6}.toggle-group button{padding:6px 16px;border-radius:var(--radius-sm);background:transparent;color:var(--color-text-secondary);font-size:.9rem;transition:all .2s ease}.toggle-group button.active{background:var(--color-primary);color:#fff;box-shadow:0 2px 4px #0000001a}.toggle-group button:hover:not(.active){color:var(--color-text);background:#ffffff0d}.app-footer{margin-top:auto;padding-top:var(--spacing-md);margin-bottom:var(--spacing-md);text-align:center;color:var(--color-text-secondary);font-size:.8rem;opacity:.7}.uploader-container{width:100%;height:auto;aspect-ratio:1 / 1;border:1px dashed var(--color-border);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;background:var(--glass-bg);-webkit-backdrop-filter:var(--backdrop-blur);backdrop-filter:var(--backdrop-blur);transition:all .2s ease;cursor:pointer;position:relative;overflow:hidden}.uploader-container:hover{border-color:var(--color-primary);background:#6366f10d;box-shadow:0 0 20px #6366f11a}.uploader-container.dragging{border-color:var(--color-primary);background:#6366f11a;transform:scale(1.01);box-shadow:0 0 30px #6366f133}.uploader-content{display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--spacing-xs);pointer-events:none}.icon-wrapper{color:var(--color-primary);margin-bottom:var(--spacing-xs)}.uploader-content h3{font-size:1.25rem;font-weight:600;color:var(--color-text)}.uploader-content p{color:var(--color-text-secondary);font-size:.9rem}.sub-text{font-size:.8rem;color:var(--color-text-secondary);opacity:.7;margin-top:var(--spacing-xs)}.preview-container{width:100%;display:flex;flex-direction:column;gap:var(--spacing-sm)}.preview-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.header-left{display:flex;flex-direction:column}.preview-header h3{font-size:1.1rem;font-weight:600;margin-bottom:var(--spacing-xs)}.preview-header p{font-size:.8rem;color:var(--color-text-secondary)}.reset-btn{padding:6px 12px;font-size:.85rem;color:var(--color-text-secondary);background:#ffffff0d;border:1px solid var(--color-border);border-radius:var(--radius-sm);transition:all .2s ease}.reset-btn:hover{background:#ef44441a;color:#ef4444;border-color:#ef44444d}.preview-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(80px,1fr));gap:var(--spacing-sm)}.preview-item{position:relative;display:flex;flex-direction:column;align-items:center;gap:4px}.image-wrapper{width:100%;aspect-ratio:1;height:auto;border-radius:var(--radius-sm);overflow:hidden;position:relative;border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);background:#0003}.image-wrapper img{width:100%;height:100%;object-fit:cover}.remove-btn{position:absolute;top:4px;right:4px;width:24px;height:24px;border-radius:50%;background:#0009;color:#fff;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s ease}.remove-btn:hover{background:#ef4444}.image-wrapper:hover .remove-btn{opacity:1}.image-index{font-size:.8rem;color:var(--color-text-secondary);font-weight:500}.stitch-container{width:100%;height:100%;display:flex;flex-direction:column;gap:var(--spacing-md);align-items:center;justify-content:center;margin-top:0}.canvas-wrapper{width:100%;max-width:600px;aspect-ratio:1 / 1;flex:0 0 auto;overflow:hidden;display:flex;justify-content:center;align-items:center;background:#ffffff0d;border-radius:var(--radius-lg);padding:var(--spacing-md);position:relative}:root[data-theme=light] .canvas-wrapper{background:transparent!important;box-shadow:none!important;padding:0!important;border:none!important}.canvas-wrapper canvas,.result-image{max-width:100%;max-height:100%;object-fit:contain;box-shadow:0 10px 30px #0000004d}.loading{color:var(--color-text-secondary)}.actions{display:flex;gap:var(--spacing-md)}.action-btn{padding:var(--spacing-sm) var(--spacing-xl);border-radius:var(--radius-full);font-weight:600;font-size:1rem;transition:all .2s ease;cursor:pointer;border:1px solid transparent;display:flex;align-items:center;justify-content:center;gap:8px}.action-btn.primary{background:var(--gradient-primary);color:#fff;box-shadow:0 4px 15px #6366f166}.action-btn.primary:hover{box-shadow:0 8px 25px #6366f180}.action-btn.secondary{background:#ffffff1a;color:var(--color-text);border-color:var(--glass-border)}.action-btn.secondary:hover{background:#fff3}.action-btn.secondary.copied{background:#10b981;color:#fff;border-color:#10b981}.action-btn.secondary.copied:hover{background:#059669;border-color:#059669}.action-btn:active{transform:translateY(0)}.action-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.theme-switcher{background:transparent;border:1px solid var(--color-border);color:var(--color-text-secondary);padding:8px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;width:40px;height:40px}.theme-switcher:hover{background:var(--glass-bg);color:var(--color-text);border-color:var(--color-text-secondary)}.theme-switcher svg{width:20px;height:20px}