:root{--primary: #6366f1;--primary-hover: #4f46e5;--bg-dark: #0f172a;--card-bg: rgba(30, 41, 59, .7);--text-main: #f8fafc;--text-muted: #94a3b8;--border: rgba(255, 255, 255, .1);--accent: #10b981}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-dark);color:var(--text-main);min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden}.glass{background:var(--card-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:16px}header{padding:1.5rem 2rem;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border)}.logo{font-size:1.5rem;font-weight:700;background:linear-gradient(to right,#818cf8,#c084fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.badge{background:#10b9811a;color:var(--accent);padding:.25rem .75rem;border-radius:9999px;font-size:.8rem;font-weight:500;border:1px solid rgba(16,185,129,.2)}main{flex:1;padding:2rem;display:grid;grid-template-columns:1fr 350px;gap:2rem;max-width:1400px;margin:0 auto;width:100%}.editor-container{display:flex;flex-direction:column;gap:1.5rem}.drop-zone{flex:1;border:2px dashed var(--border);border-radius:20px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem;transition:all .3s ease;cursor:pointer;background:#ffffff05;min-height:400px;position:relative}.drop-zone:hover,.drop-zone.active{border-color:var(--primary);background:#6366f10d}.drop-zone-content{text-align:center}.drop-zone-icon{width:64px;height:64px;margin-bottom:1rem;color:var(--primary);opacity:.8}.hidden{display:none!important}#preview-canvas{max-width:100%;max-height:70vh;border-radius:8px;box-shadow:0 4px 20px #0000004d}.controls-panel{padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem;height:fit-content}.control-group{display:flex;flex-direction:column;gap:.75rem}.control-group label{font-size:.9rem;font-weight:500;color:var(--text-muted)}input[type=number],select{background:#ffffff0d;border:1px solid var(--border);color:#fff;padding:.75rem;border-radius:8px;outline:none;transition:border-color .2s}input:focus{border-color:var(--primary)}.btn{padding:.75rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s;border:none;display:flex;align-items:center;justify-content:center;gap:.5rem}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.split-overlay{position:absolute;top:0;left:0;pointer-events:none}.split-line{position:absolute;background:var(--primary);box-shadow:0 0 8px var(--primary);z-index:10}.split-line.horizontal{height:2px;width:100%;cursor:ns-resize;pointer-events:auto}.split-line.vertical{width:2px;height:100%;cursor:ew-resize;pointer-events:auto}@media (max-width: 1000px){main{grid-template-columns:1fr}}.toast-container{position:fixed;bottom:2rem;right:2rem;z-index:1000;display:flex;flex-direction:column;gap:.75rem}.toast{background:#1e293b;color:#fff;padding:1rem 1.5rem;border-radius:12px;border-left:4px solid var(--primary);box-shadow:0 10px 25px #00000080;display:flex;align-items:center;gap:.75rem;animation:slideIn .3s ease-out forwards;min-width:300px}.toast.success{border-left-color:var(--accent)}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes fadeOut{0%{transform:translate(0);opacity:1}to{transform:translate(100%);opacity:0}}