*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:linear-gradient(135deg,#0f0f1e,#1a1a2e,#16213e);min-height:100vh;padding:20px;position:relative;overflow-x:hidden}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 20% 50%,rgba(120,119,198,.1) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(74,144,226,.1) 0%,transparent 50%);pointer-events:none;z-index:0}.container{max-width:1400px;margin:0 auto;position:relative;z-index:1}header{text-align:center;color:#fff;margin-bottom:50px;animation:fadeInDown .8s ease-out}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}header h1{font-size:3.5rem;margin-bottom:15px;font-weight:700;background:linear-gradient(135deg,#4a90e2,#7877c6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-1px}header p{font-size:1.2rem;opacity:.8;color:#b8b8d1;font-weight:300}.upload-section{text-align:center;margin-bottom:40px;animation:fadeInUp .8s ease-out .2s backwards}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.upload-area{background:#ffffff0d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px dashed rgba(74,144,226,.3);border-radius:20px;padding:60px 40px;cursor:pointer;transition:all .3s ease;max-width:600px;margin:0 auto}.upload-area:hover{border-color:#4a90e299;background:#ffffff14;transform:translateY(-2px)}.upload-area.drag-over{border-color:#4a90e2;background:#4a90e21a;transform:scale(1.02)}.upload-icon{font-size:4rem;margin-bottom:20px;display:block}.upload-text{color:#b8b8d1;font-size:1.1rem;margin-bottom:10px}.upload-hint{color:#b8b8d199;font-size:.9rem}.upload-btn{background:linear-gradient(135deg,#4a90e2,#7877c6);color:#fff;border:none;padding:16px 45px;font-size:1.1rem;font-weight:600;border-radius:12px;cursor:pointer;transition:all .3s ease;box-shadow:0 8px 25px #4a90e24d;margin-top:20px;display:inline-flex;align-items:center;gap:10px}.upload-btn:hover{transform:translateY(-2px);box-shadow:0 12px 35px #4a90e266}.upload-btn:active{transform:translateY(0)}.editor-section{display:flex;gap:30px;background:#ffffff0d;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1);border-radius:24px;padding:35px;box-shadow:0 20px 60px #0000004d;animation:fadeInUp .8s ease-out .4s backwards}.controls-panel{flex:0 0 340px;display:flex;flex-direction:column;gap:28px}.control-group{display:flex;flex-direction:column;gap:12px;background:#ffffff08;padding:20px;border-radius:16px;border:1px solid rgba(255,255,255,.05);transition:all .3s ease}.control-group:hover{background:#ffffff0d;border-color:#4a90e233}.control-group label{font-weight:600;color:#b8b8d1;font-size:.95rem;display:flex;align-items:center;gap:8px}.label-icon{font-size:1.1rem}.slider-container{display:flex;align-items:center;gap:15px}input[type=range]{flex:1;height:6px;border-radius:3px;background:#ffffff1a;outline:none;-webkit-appearance:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:linear-gradient(135deg,#4a90e2,#7877c6);cursor:pointer;transition:all .2s ease;box-shadow:0 4px 12px #4a90e266}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15);box-shadow:0 6px 16px #4a90e299}input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:linear-gradient(135deg,#4a90e2,#7877c6);cursor:pointer;border:none;transition:all .2s ease;box-shadow:0 4px 12px #4a90e266}input[type=range]::-moz-range-thumb:hover{transform:scale(1.15);box-shadow:0 6px 16px #4a90e299}.slider-container span{min-width:60px;text-align:right;font-weight:600;color:#4a90e2;font-size:.95rem}input[type=color]{width:100%;height:50px;border:2px solid rgba(255,255,255,.1);border-radius:12px;cursor:pointer;transition:all .3s ease;background:#ffffff0d}input[type=color]:hover{border-color:#4a90e280;transform:scale(1.02)}.button-group{display:flex;gap:15px;margin-top:auto;padding-top:24px;border-top:1px solid rgba(255,255,255,.1)}.btn{flex:1;padding:14px 24px;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn-primary{background:linear-gradient(135deg,#4a90e2,#7877c6);color:#fff;box-shadow:0 8px 20px #4a90e24d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px #4a90e266}.btn-secondary{background:#ffffff14;color:#b8b8d1;border:1px solid rgba(255,255,255,.1)}.btn-secondary:hover{background:#ffffff1f;border-color:#fff3}.btn:active{transform:translateY(0)}.preview-panel{flex:1;display:flex;justify-content:center;align-items:center;background:#0003;border-radius:20px;padding:30px;overflow:auto;border:1px solid rgba(255,255,255,.05);position:relative}.preview-panel:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(45deg,rgba(255,255,255,.03) 25%,transparent 25%),linear-gradient(-45deg,rgba(255,255,255,.03) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,rgba(255,255,255,.03) 75%),linear-gradient(-45deg,transparent 75%,rgba(255,255,255,.03) 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px;border-radius:20px;opacity:.3;pointer-events:none}#canvas{max-width:100%;max-height:70vh;box-shadow:0 8px 32px #0006;border-radius:12px;position:relative;z-index:1}@media (max-width: 1024px){.editor-section{flex-direction:column}.controls-panel{flex:1}#canvas{max-height:50vh}}@media (max-width: 768px){header h1{font-size:2rem}header p{font-size:1rem}.editor-section{padding:20px}.controls-panel{gap:20px}.button-group{flex-direction:column}}
