:root{--bg-color: #0f172a;--text-color: #f8fafc;--primary-color: #8b5cf6;--secondary-color: #ec4899;--accent-color: #06b6d4;--glass-bg: rgba(30, 41, 59, .7);--glass-border: rgba(255, 255, 255, .1);--card-bg: rgba(15, 23, 42, .6);--font-main: "Inter", sans-serif}body{margin:0;font-family:var(--font-main);background-color:var(--bg-color);color:var(--text-color);background-image:radial-gradient(circle at 10% 20%,rgba(139,92,246,.15) 0%,transparent 20%),radial-gradient(circle at 90% 80%,rgba(236,72,153,.15) 0%,transparent 20%);min-height:100vh;display:flex;flex-direction:column}#app{max-width:1200px;margin:0 auto;padding:2rem;width:100%;box-sizing:border-box;flex:1}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem;padding:1rem 2rem;background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:1rem;border:1px solid var(--glass-border)}.logo{font-size:1.5rem;font-weight:700;background:linear-gradient(to right,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-decoration:none}nav a{color:var(--text-color);text-decoration:none;margin-left:1.5rem;font-weight:500;transition:color .3s;font-size:.9rem}nav a:hover,nav a.active{color:var(--accent-color)}.hero{text-align:center;margin-bottom:4rem}h1{font-size:3rem;margin-bottom:1rem;line-height:1.2;background:linear-gradient(to right,#fff,#cbd5e1);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.card{background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:1.5rem;padding:2rem;margin-bottom:2rem;box-shadow:0 8px 32px #0003}.input-group{margin-bottom:1.5rem}label{display:block;margin-bottom:.5rem;font-weight:500;color:#94a3b8}input,select{width:100%;padding:.75rem 1rem;background:#0f172acc;border:1px solid var(--glass-border);border-radius:.5rem;color:#fff;font-size:1rem;transition:border-color .3s;box-sizing:border-box}input:focus,select:focus{outline:none;border-color:var(--primary-color)}button{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border:none;padding:1rem 2rem;border-radius:.5rem;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,opacity .2s;width:100%}button:hover{opacity:.9;transform:translateY(-1px)}.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-top:2rem}.result-item{background:#ffffff0d;padding:1.5rem;border-radius:1rem;text-align:center}.result-value{font-size:2.5rem;font-weight:700;color:var(--accent-color);margin:.5rem 0}.zone-chart{margin-top:2rem}.zone-bar{display:flex;align-items:center;margin-bottom:.5rem;padding:.5rem;border-radius:.5rem;color:#1e293b;font-weight:600;font-size:.9rem}.zone-info{flex:1;display:flex;justify-content:space-between;padding:0 1rem}footer{text-align:center;padding:2rem;color:#64748b;font-size:.9rem;margin-top:auto}@media(max-width:768px){h1{font-size:2rem}header{flex-direction:column;gap:1rem}nav{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem}nav a{margin:0}}