:root{--background:#050a14;--surface:#0a1f44;--surface-highlight:#112a55;--primary:#f50;--primary-glow:rgba(255,85,0,.6);--secondary:#f80;--accent:#f05;--accent-glow:rgba(255,0,85,.4);--text-main:#fff;--text-muted:#a0aec0;--border:#2d3748;--font-main:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}body,html{padding:0;margin:0;font-family:var(--font-main);background-color:var(--background);color:var(--text-main);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}*{box-sizing:border-box}.container{max-width:600px;margin:0 auto;padding:20px;min-height:100vh;display:flex;flex-direction:column}.btn{background:#fff;border:2px solid var(--primary);border-radius:12px;padding:16px 24px;color:#000;font-weight:700;font-size:1.1rem;cursor:pointer;transition:transform .2s,box-shadow .2s;text-align:center}.btn:active{transform:scale(.98)}.btn:hover{box-shadow:0 0 20px var(--primary-glow)}.card{background:var(--surface);border-radius:16px;padding:24px;box-shadow:0 4px 6px rgba(0,0,0,.3);border:1px solid var(--border)}.title{font-size:2rem;font-weight:800;margin-bottom:.5em;background:linear-gradient(to right,var(--primary),var(--secondary));background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.cyber-card{background:radial-gradient(circle at center,rgba(255,85,0,.15) 0,rgba(5,10,20,.95) 100%);border:1px solid rgba(255,85,0,.3);border-radius:16px;padding:2rem;backdrop-filter:blur(10px)}.neon-button{background-color:#fff;color:#000;box-shadow:0 0 10px 2px rgba(255,85,0,.6),0 0 20px 5px rgba(255,85,0,.3);border-radius:12px;font-weight:700;border:2px solid #f50;padding:1.2rem;width:100%;font-size:1.2rem;cursor:pointer;transition:transform .2s,box-shadow .2s}.neon-button:hover{transform:scale(1.02);box-shadow:0 0 15px 4px rgba(255,85,0,.8),0 0 25px 8px rgba(255,85,0,.4)}.qr-glow-container{padding:20px;border-radius:24px;background:#fff;box-shadow:0 0 15px 5px rgba(255,85,0,.5),0 0 30px 10px rgba(255,85,0,.2);position:relative;display:inline-block}.copy-btn{position:absolute;top:-15px;right:-25px;width:70px;height:70px;border-radius:50%;background:#f40;border:2px solid #fff;color:#fff;font-size:.8rem;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 15px rgba(0,0,0,.6);z-index:10;transition:transform .2s}.copy-btn:hover{transform:scale(1.1)}@keyframes fadeIn{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}