*,:before,:after{box-sizing:border-box;margin:0;padding:0}[hidden]{display:none!important}body{color:#1a1a1a;background:#f4f4f4;flex-direction:column;min-height:100dvh;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.5;display:flex}header{color:#fff;text-align:center;background:#da291c;padding:2.5rem 1.5rem 2rem}header h1{letter-spacing:-.03em;font-size:clamp(1.8rem,5vw,3rem);font-weight:800;line-height:1.1}header .tagline{opacity:.92;margin-top:.5rem;font-size:1.05rem}main{flex:1;width:100%;max-width:780px;margin:0 auto;padding:2rem 1.25rem 3rem}form{margin-bottom:1.5rem}.input-group{gap:.5rem;display:flex}input[type=text]{background:#fff;border:2px solid #d4d4d4;border-radius:8px;outline:none;flex:1;padding:.75rem 1rem;font-size:1rem;transition:border-color .2s}input[type=text]:focus{border-color:#da291c}button[type=submit]{color:#fff;cursor:pointer;white-space:nowrap;background:#da291c;border:none;border-radius:8px;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;transition:background .15s}button[type=submit]:hover:not(:disabled){background:#b5201b}button[type=submit]:disabled{cursor:not-allowed;background:#aaa}#status{border-radius:8px;margin-bottom:1.25rem;padding:.85rem 1rem;font-size:.95rem}#status.loading{color:#7a5500;background:#fff8e1;border:1px solid #ffc107}#status.error{color:#8b1a1a;background:#fdf2f2;border:1px solid #f5c2c7}#results{flex-direction:column;gap:1rem;display:flex}.card{background:#fff;border-radius:12px;padding:1.5rem;box-shadow:0 1px 3px #00000014,0 1px 8px #0000000a}.card h2{text-transform:uppercase;letter-spacing:.1em;color:#888;margin-bottom:.6rem;font-size:.7rem;font-weight:700}.main-value{color:#111;font-size:2rem;font-weight:700;line-height:1.15}.main-value .unit{color:#666;margin-left:.1em;font-size:1rem;font-weight:400}.source-label{color:#333;margin-top:.4rem;font-size:.875rem;font-weight:600}.detail{color:#666;margin-top:.35rem;font-size:.825rem;line-height:1.55}.highlight-card{background:#ffbc0d}.highlight-card h2{color:#5a3e00}.calc-grid{grid-template-columns:repeat(3,1fr);gap:.75rem;margin-top:.5rem;display:grid}.calc-item{background:#ffffff8c;border-radius:8px;padding:1rem}.calc-label{text-transform:uppercase;letter-spacing:.08em;color:#5a3e00;margin-bottom:.35rem;font-size:.7rem;font-weight:700}.calc-value{color:#111;font-size:1.3rem;font-weight:700;line-height:1.2}.calc-sub{color:#6b4d00;margin-top:.3rem;font-size:.775rem}footer{color:#888;text-align:center;background:#1a1a1a;padding:1.5rem 1.25rem;font-size:.775rem;line-height:1.65}footer a{color:#ffbc0d;text-decoration:none}footer a:hover{text-decoration:underline}@media (width<=560px){.input-group{flex-direction:column}button[type=submit]{width:100%}.main-value{font-size:1.6rem}.calc-grid{grid-template-columns:1fr}}