*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#0A1A14;--card:rgba(10,26,20,0.8);--border:rgba(0,184,148,0.12);--primary:#00B894;--primary-l:#55EFC4;--accent:#FDCB6E;--text:#E2E8F0;--muted:#94A3B8;--dim:#4B5563;--r:12px;--rs:8px;--font:'Inter',system-ui,sans-serif}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;display:flex;align-items:center;justify-content:center;-webkit-font-smoothing:antialiased}
body::before{content:'';position:fixed;inset:0;pointer-events:none;background:radial-gradient(ellipse 50% 40% at 50% 20%,rgba(0,184,148,0.05),transparent 70%)}
.app{max-width:480px;width:100%;padding:20px;position:relative;z-index:1}
h1{font-size:1.3rem;font-weight:700;text-align:center;margin-bottom:16px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.main{display:flex;flex-direction:column;gap:12px}
.panel{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:16px;backdrop-filter:blur(12px)}
.panel h3{font-size:0.9rem;font-weight:600;margin-bottom:10px;color:var(--primary-l)}
.input-row{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.input-row label{font-size:0.8rem;color:var(--muted);min-width:120px;flex-shrink:0}
.input-row input,.input-row select{flex:1;background:rgba(0,0,0,0.3);border:1px solid var(--border);border-radius:var(--rs);padding:8px 10px;font-family:var(--font);font-size:0.85rem;color:var(--text);color-scheme:dark}
.input-row input:focus,.input-row select:focus{outline:none;border-color:var(--primary)}
.rate-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.rate-card{background:rgba(0,0,0,0.2);border:1px solid var(--border);border-radius:var(--rs);padding:12px;text-align:center}
.rate-label{font-size:0.72rem;color:var(--dim);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:4px}
.rate-value{font-size:1.3rem;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.results{border-color:rgba(253,203,110,0.2)}
.footer{text-align:center;color:var(--dim);font-size:0.7rem;margin-top:16px}