*{box-sizing:border-box}
body{font-family:Arial,sans-serif;margin:0;background:#f7fbf6;color:#243024;line-height:1.6}
.container{max-width:1200px;margin:auto;padding:20px}
.hero{text-align:center;padding:60px 20px;background:#e6f5e8}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.card{background:white;padding:24px;border-radius:16px;box-shadow:0 5px 18px rgba(0,0,0,.08)}
input,select,button{width:100%;padding:12px;margin:8px 0;border-radius:8px;border:1px solid #ccc}
button{background:#236b3c;color:#fff;border:0;cursor:pointer}
.result{font-size:20px;font-weight:bold;color:#236b3c;margin-top:15px}
a{text-decoration:none;color:#236b3c}