*{box-sizing:border-box}body{font-family:Inter,system-ui,Arial,sans-serif;background:#0b1317;color:#e9f4f1;margin:0}
.header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:#0f161c;border-bottom:1px solid rgba(255,255,255,.08)}
.brand{font-weight:800;color:#aef2e4;text-decoration:none}
.header a{color:#cfeee6;margin-left:14px;text-decoration:none}
.header a:hover{opacity:.8}
.container{max-width:980px;margin:0 auto;padding:24px}
h1{font-size:28px;margin:0 0 8px}
h2{font-size:20px;margin:12px 0}
.card{background:#0f161c;border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:16px;margin:12px 0}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
label{display:block;margin:10px 0 6px;font-weight:600}
select,input{width:100%;padding:10px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:#0b1116;color:#e6fbf7}
.btn{padding:12px 16px;border-radius:12px;border:1px solid #157d6e;background:#0f7b6c;color:#eafff9;font-weight:800;cursor:pointer}
.result{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.kpi{background:#0d1b19;border:1px solid rgba(255,255,255,.14);padding:10px 12px;border-radius:12px}
.small{color:#b8d4cf;font-size:13px}
.badge{display:inline-block;padding:6px 10px;border-radius:999px;border:1px solid rgba(255,255,255,.18);background:#0c1a18;color:#bfeee4;font-weight:700;font-size:12px}
.footer{padding:18px;text-align:center;color:#b8d4cf;border-top:1px solid rgba(255,255,255,.08);margin-top:24px}
.tips{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.tip{background:#0c1a18;border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:12px}
.tip h3{margin:0 0 8px;font-size:16px;color:#aef2e4}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.note{font-size:12px;color:#96c3ba;margin-top:6px}
.success{background:#0e241f;border:1px solid #125c4f;padding:10px;border-radius:10px;color:#aef2e4;margin-top:10px}