:root{--wd-blue-1:#0d6daa;--wd-blue-2:#154f7f;--wd-blue-3:#182c4d;--wd-gradient:linear-gradient(135deg,var(--wd-blue-1),var(--wd-blue-2) 55%,var(--wd-blue-3));--wd-card:rgba(24,44,77,0.55);--wd-text:#eaf2fb;--wd-muted:#a9c2db}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--wd-text);background:var(--wd-gradient);min-height:100vh}a{color:#7fc4ff}.container{max-width:960px;margin:0 auto;padding:2rem 1.25rem}.hero h1{font-size:2.4rem;margin:0 0 .5rem}.hero p{color:var(--wd-muted);font-size:1.1rem;max-width:38rem}.card{background:var(--wd-card);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:1.25rem;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.grid{display:grid;grid-gap:1rem;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.row{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.5rem 0}.num{width:5rem;padding:.4rem .5rem;border-radius:8px;border:1px solid rgba(255,255,255,.2);background:rgba(0,0,0,.2);color:var(--wd-text)}.total{font-size:1.6rem}.btn,.total{font-weight:700}.btn{display:inline-block;background:#fff;color:var(--wd-blue-3);padding:.7rem 1.4rem;border:none;border-radius:10px;cursor:pointer;text-decoration:none}.muted{font-size:.9rem}.muted,footer{color:var(--wd-muted)}footer{text-align:center;padding:2rem 1rem;font-size:.85rem}