:root{--primary-color:#9747ff;--bg-color:#f8f9fa;--text-color:#333;--card-bg:#fff;--border-color:#e5e7eb}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-color);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:2rem}.header{text-align:center;margin-bottom:3rem}.header h1{color:var(--primary-color);margin-bottom:.5rem;font-size:2.5rem}.header p{color:#666;font-size:1.1rem}.main-content{flex-wrap:wrap;gap:2rem;display:flex}.editor-panel{background:var(--card-bg);border-radius:12px;flex:1;min-width:300px;padding:2rem;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.preview-panel{background:var(--card-bg);background-image:linear-gradient(45deg,#f0f0f0 25%,#0000 25%),linear-gradient(-45deg,#f0f0f0 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#f0f0f0 75%),linear-gradient(-45deg,#0000 75%,#f0f0f0 75%);background-position:0 0,0 10px,10px -10px,-10px 0;background-size:20px 20px;border-radius:12px;flex-direction:column;flex:1;justify-content:center;align-items:center;min-width:300px;padding:2rem;display:flex;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.seal-container{background-color:#0000;padding:20px}.form-group{margin-bottom:1.5rem}.form-group label{color:#4b5563;margin-bottom:.5rem;font-weight:600;display:block}.form-control{border:1px solid var(--border-color);border-radius:8px;width:100%;padding:.75rem 1rem;font-size:1rem;transition:border-color .2s,box-shadow .2s}.form-control:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #9747ff33}.btn{cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:#7b2cbf;transform:translateY(-1px)}.btn-secondary{color:#374151;background-color:#f3f4f6}.btn-secondary:hover{background-color:#e5e7eb}.btn-icon{width:32px;height:32px;color:var(--primary-color);background-color:#f3f4f6;border-radius:50%;justify-content:center;align-items:center;margin-left:.5rem;padding:.5rem;display:inline-flex}.btn-icon:hover{background-color:#e5e7eb}.tabs{border-bottom:2px solid var(--border-color);margin-bottom:2rem;display:flex}.tab{color:#6b7280;cursor:pointer;border-bottom:2px solid #0000;margin-bottom:-2px;padding:.75rem 1.5rem;font-weight:600;transition:all .2s}.tab.active{color:var(--primary-color);border-bottom-color:var(--primary-color)}.tab:hover:not(.active){color:#374151}.lines-container{flex-direction:column;gap:1rem;display:flex}.line-input-row{align-items:center;gap:.5rem;display:flex}