:root{--spruce:#14532D;--dark:#0E3B20;--bg:#FAF9F6;--ink:#1F2937;--amber:#92400E;--line:#E5E1D8;--card:#FFFFFF}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}
header{background:var(--dark);color:#fff;padding:18px 20px}
header .wrap,main,footer .wrap{max-width:980px;margin:0 auto}
.brand{font-size:28px;font-weight:800;letter-spacing:.2px}
.brand span{color:#FBBF24}
.tagline{font-size:13px;opacity:.9}
nav{margin-top:10px}
nav a{color:#fff;text-decoration:none;margin-right:16px;font-size:14px}
nav a:hover{text-decoration:underline}
main{padding:20px}
h1{color:var(--dark);line-height:1.2}
h2{color:var(--spruce);margin-top:0}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin:18px 0}
label{display:block;font-weight:600;font-size:14px;margin:10px 0 4px}
input,select{width:100%;padding:10px;border:1px solid #D1D5DB;border-radius:8px;font-size:16px;background:#fff}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){.grid{grid-template-columns:1fr}}
.results{background:#F0FDF4;border:1px solid #BBF7D0;border-radius:8px;padding:14px;margin-top:14px}
.results p{margin:6px 0}
.toggle{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.toggle button{padding:8px 14px;border-radius:999px;border:1px solid var(--spruce);background:#fff;color:var(--spruce);font-weight:700;cursor:pointer}
.toggle button.active{background:var(--spruce);color:#fff}
.note{font-size:13px;color:#4B5563}
.disclaimer{font-size:13px;background:#FFFBEB;border:1px solid #FDE68A;padding:10px;border-radius:8px;margin-top:12px}
.example{background:#F9FAFB;border:1px dashed #D1D5DB;padding:12px;border-radius:8px;margin-top:12px;font-size:14px}
footer{border-top:1px solid var(--line);padding:22px 20px;margin-top:30px;background:#fff}
footer a{color:var(--spruce);margin-right:14px}
.btn{display:inline-block;background:var(--amber);color:#fff;padding:10px 16px;border-radius:8px;text-decoration:none;font-weight:700}

:focus{outline:3px solid #92400E;outline-offset:2px}
:focus-visible{outline:3px solid #92400E;outline-offset:2px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #92400E;outline-offset:2px}
.field-label{display:block;font-weight:600;font-size:14px;margin:12px 0 4px}
.faq-item h3{margin-top:14px}
.tools-list{padding-left:20px}
.tools-list li{margin:8px 0}