:root{--primary:#0f766e;--primary-hover:#115e59;--text:#1f2937;--text-muted:#6b7280;--bg:#f8fafc;--card-bg:#ffffff;--border:#e2e8f0;--accent:#f59e0b;--warn:#b91c1c;--ok:#15803d;--radius:12px;--radius-sm:8px}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:880px;margin:0 auto;padding:0 20px}header.site-head{padding:20px 0;border-bottom:1px solid var(--border);background:#fff;margin-bottom:32px}header.site-head .wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}header.site-head .logo{font-size:1.25rem;font-weight:700;color:var(--primary);text-decoration:none}header.site-head nav{display:flex;gap:20px;font-size:0.95rem}header.site-head nav a{color:var(--text);font-weight:500}header.site-head nav a:hover{color:var(--primary);text-decoration:none}h1,h2,h3{color:var(--text);line-height:1.25;font-weight:700}h1{font-size:2rem;margin-bottom:12px}h2{font-size:1.4rem;margin:24px 0 12px}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:24px;box-shadow:0 1px 3px rgba(0,0,0,0.04)}form label{display:block;font-size:0.9rem;font-weight:600;margin-bottom:6px;color:var(--text)}form .form-group{margin-bottom:16px}input[type=number],input[type=text],select{display:block;width:100%;padding:10px 12px;font-size:1rem;color:var(--text);background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);outline:none;transition:border-color .15s,box-shadow .15s}input[type=number]:focus,input[type=text]:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,118,110,0.15)}.btn{display:inline-block;padding:10px 20px;font-size:1rem;font-weight:600;color:#fff;background:var(--primary);border:1px solid var(--primary);border-radius:var(--radius-sm);cursor:pointer;text-align:center;text-decoration:none;transition:background-color .15s,border-color .15s}.btn:hover{background:var(--primary-hover);border-color:var(--primary-hover);text-decoration:none}.btn.secondary{background:transparent;color:var(--primary);border-color:var(--primary)}.btn.secondary:hover{background:rgba(15,118,110,0.08);color:var(--primary-hover)}.results{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:20px 0}.stat{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;text-align:center}.stat b{display:block;font-size:1.85rem;line-height:1.2;color:var(--primary);margin-bottom:4px}.stat span{display:block;font-size:0.85rem;color:var(--text-muted);font-weight:500}table{width:100%;border-collapse:collapse;margin:16px 0;font-size:0.95rem}th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border)}th{background:var(--bg);font-weight:600;color:var(--text)}.note{font-size:0.85rem;color:var(--text-muted);margin:6px 0}.warn{color:var(--warn);font-weight:700}.ok{color:var(--ok);font-weight:700}footer.site-foot{padding:32px 0;margin-top:48px;border-top:1px solid var(--border);font-size:0.85rem;color:var(--text-muted);text-align:center}footer.site-foot a{color:var(--text-muted);margin:0 8px}footer.site-foot a:hover{color:var(--primary)}@media (max-width:640px){.results{grid-template-columns:1fr}h1{font-size:1.6rem}h2{font-size:1.25rem}.card{padding:18px}.stat b{font-size:1.5rem}}