:root{--color-primary: #3b82f6;--color-primary-dark: #2563eb;--color-secondary: #8b5cf6;--color-accent: #f43f5e;--bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);--glass-bg: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .1);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .37);--text-main: #f8fafc;--text-muted: #94a3b8;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color-scheme:dark}body{margin:0;display:flex;place-items:center;justify-content:center;min-height:100vh;min-height:100dvh;background-image:var(--bg-gradient);background-attachment:fixed;color:var(--text-main);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{width:100%;max-width:900px;padding:2rem;box-sizing:border-box}.container{display:flex;flex-direction:column;gap:2rem;background:var(--glass-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);border-radius:24px;padding:3rem;box-shadow:var(--glass-shadow);animation:fadeIn .8s ease-out forwards}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.header{text-align:center}.header h1{margin:0 0 .5rem;font-size:2.5rem;font-weight:700;background:linear-gradient(to right,var(--color-primary),var(--color-secondary));-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.025em}.header p{margin:0;color:var(--text-muted);font-size:1.1rem}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start}@media (max-width: 768px){.content-grid{grid-template-columns:1fr}.container{padding:2rem}}.controls{display:flex;flex-direction:column;gap:1.5rem}.input-group{display:flex;flex-direction:column;gap:.5rem}.input-group label{font-weight:500;font-size:.95rem;color:var(--text-main)}textarea{width:100%;padding:1rem;border-radius:12px;border:1px solid var(--glass-border);background:#0003;color:var(--text-main);font-family:inherit;font-size:1rem;resize:vertical;min-height:120px;box-sizing:border-box;transition:all .3s ease}textarea:focus{outline:none;border-color:var(--color-secondary);background:#0000004d;box-shadow:0 0 0 4px #8b5cf61a}textarea::placeholder{color:var(--text-muted)}.button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.875rem 1.5rem;border-radius:12px;border:none;font-family:inherit;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);text-decoration:none}.button-primary{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));color:#fff;box-shadow:0 4px 15px #3b82f64d}.button-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #3b82f666}.button-primary:active{transform:translateY(0)}.preview-area{display:flex;flex-direction:column;align-items:center;gap:1.5rem}.qr-container{background:#fff;padding:1.5rem;border-radius:20px;box-shadow:0 10px 40px #00000080;width:100%;aspect-ratio:1 / 1;display:flex;align-items:center;justify-content:center;box-sizing:border-box;transition:transform .4s cubic-bezier(.175,.885,.32,1.275)}.qr-container:hover{transform:scale(1.02)}.qr-container svg{width:100%;height:100%;display:block}.settings-panel{background:#0003;border:1px solid var(--glass-border);border-radius:16px;padding:1.5rem;display:flex;flex-direction:column;gap:1.25rem}.settings-panel h3{margin:0;font-size:1.1rem;font-weight:600;color:var(--text-main);border-bottom:1px solid var(--glass-border);padding-bottom:.5rem}.radio-group{display:flex;flex-wrap:wrap;gap:1rem}.radio-group label{display:flex;align-items:center;gap:.25rem;font-weight:400;cursor:pointer}input[type=number],input[type=color]{padding:.5rem;border-radius:8px;border:1px solid var(--glass-border);background:#0000004d;color:var(--text-main);font-family:inherit}input[type=number]:focus{outline:none;border-color:var(--color-primary)}.range-controls{display:flex;gap:1rem;align-items:center}.range-controls label{display:flex;align-items:center;gap:.5rem;font-weight:400}.range-controls input[type=number]{width:70px}.color-controls{display:flex;gap:1.5rem;align-items:center}.color-controls label{display:flex;align-items:center;gap:.5rem;font-weight:400}.checkbox-label{display:flex;align-items:center;gap:.5rem;font-weight:400;cursor:pointer}.checkbox-group{margin-top:.5rem}.statistics-panel{background:#0003;border:1px solid var(--glass-border);border-radius:12px;padding:1rem;font-size:.85rem;color:var(--text-muted);width:100%;box-sizing:border-box;line-height:1.5}.statistics-panel strong{color:var(--text-main)}.error-msg{color:var(--color-accent);font-size:.9rem;min-height:1.2em;margin-top:.25rem}