:root{--bg-app: #0f172a;--bg-panel: #1e293b;--bg-card: #28344b;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--accent-primary: #38bdf8;--accent-glow: rgba(56, 189, 248, .3);--accent-secondary: #818cf8;--border-subtle: #334155;--border-active: #475569;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--font-sans: "Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-app);color:var(--text-primary);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;min-height:100vh;overflow-x:hidden}.glass-panel{background:#1e293bb3;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.1)}.text-gradient{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.app-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:3rem 1.5rem;position:relative;overflow:hidden}.bg-ambience{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden;z-index:-10;pointer-events:none}.blob{position:absolute;border-radius:50%;filter:blur(120px);opacity:.1}.blob-1{top:-20%;left:-10%;width:50%;height:50%;background:var(--accent-primary)}.blob-2{bottom:-10%;right:-10%;width:40%;height:40%;background:var(--accent-secondary)}.app-header{display:flex;flex-direction:column;align-items:center;margin-bottom:3rem;text-align:center}.logo-lockup{display:flex;align-items:center;gap:.75rem;margin-bottom:.5rem}.icon-logo{width:2rem;height:2rem;color:var(--accent-primary)}.title{font-size:2.5rem;font-weight:700;letter-spacing:-.025em;color:var(--text-primary)}.subtitle{color:var(--text-secondary);max-width:28rem;line-height:1.5}.app-main{width:100%;max-width:72rem;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px}.upload-card{width:100%;max-width:36rem;padding:3rem;border-radius:var(--radius-lg);border:2px dashed var(--border-subtle);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;cursor:pointer;transition:all .3s ease;position:relative}.upload-card:hover{border-color:var(--accent-primary);background:#1e293b66}.upload-icon-wrapper{width:5rem;height:5rem;background:var(--bg-panel);border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem;transition:transform .3s ease}.upload-card:hover .upload-icon-wrapper{transform:scale(1.1)}.btn-primary{padding:.625rem 1.5rem;background:var(--accent-primary);color:#fff;font-weight:500;border-radius:var(--radius-sm);border:none;cursor:pointer;transition:background .2s}.btn-primary:hover{background:#0ea5e9}.hidden-input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer;width:100%;height:100%;z-index:10}.status-panel{padding:2rem;border-radius:var(--radius-md);display:flex;flex-direction:column;align-items:center;gap:1rem}.progress-track{width:16rem;height:.5rem;background:var(--border-subtle);border-radius:999px;overflow:hidden}.progress-bar{height:100%;background:var(--accent-primary);transition:width .3s ease}.result-view{display:flex;flex-direction:column;align-items:center;gap:1.5rem;width:100%}.canvas-container{padding:1rem;border-radius:var(--radius-md);overflow:hidden;box-shadow:0 25px 50px -12px #00000040;background:var(--bg-panel);border:1px solid rgba(255,255,255,.1)}.palette-legend{padding:1rem;border-radius:var(--radius-md);display:flex;gap:.5rem;flex-wrap:wrap;max-width:42rem;justify-content:center;background:var(--bg-panel);border:1px solid rgba(255,255,255,.1)}.swatch{display:flex;flex-direction:column;align-items:center;gap:.25rem}.color-dot{width:2rem;height:2rem;border-radius:50%;border:1px solid rgba(255,255,255,.2)}.btn-link{background:none;border:none;color:var(--text-muted);text-decoration:underline;cursor:pointer;font-size:.875rem;margin-top:1rem}.btn-link:hover{color:var(--text-primary)}.footer{margin-top:3rem;color:var(--text-muted);font-size:.875rem}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-app)}::-webkit-scrollbar-thumb{background:var(--border-active);border-radius:5px;border:2px solid var(--bg-app)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.custom-range{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:6px;background:var(--bg-card);border-radius:999px;outline:none;cursor:pointer;border:1px solid var(--border-subtle)}.custom-range::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;background:var(--accent-primary);border-radius:50%;border:2px solid white;box-shadow:0 0 10px var(--accent-glow);transition:transform .1s ease,box-shadow .2s ease;margin-top:-1px}.custom-range::-webkit-slider-thumb:hover{transform:scale(1.1);box-shadow:0 0 15px var(--accent-primary)}.custom-range::-moz-range-thumb{width:18px;height:18px;background:var(--accent-primary);border:2px solid white;border-radius:50%;cursor:pointer;transition:transform .1s ease}.custom-range::-moz-range-thumb:hover{transform:scale(1.1)}