:root{--bg-primary:#f7f6f0;--bg-secondary:#fff;--bg-tertiary:#efece4;--bg-glass:#ffffffb3;--border-glass:#00000014;--text-primary:#1e293b;--text-secondary:#64748b;--accent-primary:#8b5cf6;--accent-hover:#7c3aed;--accent-glow:#8b5cf633;--success:#10b981;--danger:#ef4444;--warning:#f59e0b;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;line-height:1.5;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2}a{color:var(--accent-primary);text-decoration:none;transition:color .2s}a:hover{color:var(--accent-hover)}button{font-family:inherit}.glass-panel{background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-glass);border-radius:var(--radius-lg);box-shadow:0 8px 32px #0000004d}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--bg-secondary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:#334155}.app-container{flex-direction:column;width:100vw;height:100vh;display:flex;overflow:hidden}.app-header{border-bottom:1px solid var(--border-glass);background:var(--bg-secondary);z-index:10;justify-content:space-between;align-items:center;height:64px;padding:0 24px;display:flex}.app-title{flex-direction:column;justify-content:center;align-items:flex-start;gap:0;display:flex}.title-main{letter-spacing:.02em;color:var(--text-primary);text-transform:uppercase;align-items:center;gap:8px;font-size:1.35rem;font-weight:900;display:flex}.title-pro{color:var(--accent-primary)}.title-sub{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.35em;margin-top:-2px;margin-left:34px;font-size:.65rem;font-weight:700}.rainbow-icon{color:url(#rainbowGrad)}.app-content{flex:1;display:flex;overflow:hidden}.sidebar-left{background:var(--bg-tertiary);border-right:1px solid var(--border-glass);flex-direction:column;gap:24px;width:320px;padding:20px 16px;display:flex;overflow-y:auto}.sidebar{background:var(--bg-tertiary);border-left:1px solid var(--border-glass);flex-direction:column;gap:24px;width:320px;padding:24px;display:flex;overflow-y:auto}.main-workspace{background:var(--bg-primary);flex-direction:column;flex:1;gap:24px;padding:24px;display:flex;position:relative}.upload-zone{border:2px dashed var(--border-glass);border-radius:var(--radius-lg);cursor:pointer;text-align:center;background:#00000008;flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:32px 24px;transition:all .2s;display:flex}.upload-zone:hover{border-color:var(--accent-primary);background:var(--accent-glow)}.upload-icon{color:var(--accent-primary);margin-bottom:8px}.btn{background:var(--accent-primary);color:#fff;border-radius:var(--radius-md);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;width:100%;padding:10px 16px;font-weight:600;transition:background .2s;display:inline-flex}.btn:hover{background:var(--accent-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.section-title{text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);margin-bottom:12px;font-size:.875rem;font-weight:600}.canvas-workspace{flex:1;padding:40px;display:flex;position:relative;overflow:auto}.canvas-inner-wrapper{justify-content:center;align-items:center;margin:auto;display:flex}.canvas-container{background:var(--bg-secondary);border-radius:var(--radius-lg);border:1px solid var(--border-glass);flex:1;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.canvas-placeholder{color:var(--text-secondary);opacity:.5;flex-direction:column;align-items:center;gap:16px;display:flex}.palette-grid{grid-template-columns:repeat(auto-fill,minmax(36px,1fr));gap:8px;margin-top:12px;display:grid}.color-swatch{aspect-ratio:1;border-radius:var(--radius-md);border:1px solid var(--border-glass);cursor:pointer;justify-content:center;align-items:center;width:100%;font-size:.75rem;font-weight:700;transition:transform .1s;display:flex;position:relative}.color-swatch:hover{z-index:2;transform:scale(1.1);box-shadow:0 4px 12px #0000004d}.color-swatch span{text-shadow:0 0 2px #000c;color:#fff}.color-swatch[data-light=true] span{color:#000;text-shadow:none}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spin{animation:1s linear infinite spin}.list-item{border-radius:var(--radius-md);cursor:pointer;color:var(--text-secondary);border:1px solid #0000;justify-content:space-between;align-items:center;margin-bottom:4px;padding:8px 12px;transition:all .2s;display:flex}.list-item:hover{background:#ffffff0d}.list-item.active{background:var(--bg-secondary);border-color:var(--accent-primary);color:var(--accent-primary);box-shadow:0 2px 8px var(--border-glass);font-weight:600}.list-item-title{text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:.9rem;overflow:hidden}.list-item-actions{opacity:0;gap:4px;transition:opacity .2s;display:flex}.list-item:hover .list-item-actions{opacity:1}.action-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:4px;display:flex}.action-btn:hover{color:var(--accent-primary);background:var(--border-glass)}