:root{--bg:#fff;--fg:#14181f;--muted:#5b6472;--line:#e3e6eb;--accent:#1d4ed8;--accent-fg:#fff;--soft:#f5f7fa}
@media (prefers-color-scheme:dark){:root{--bg:#0f1217;--fg:#e8ebf0;--muted:#9aa3b2;--line:#262c36;--accent:#6b9bff;--accent-fg:#0f1217;--soft:#161b23}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--accent)}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 20px;padding-top:14px;padding-bottom:14px}
.brand{font-weight:700;color:var(--fg);text-decoration:none}
nav{display:flex;flex-wrap:wrap;gap:4px 16px}
nav a{color:var(--muted);text-decoration:none;font-size:15px}
nav a[aria-current=page]{color:var(--fg);font-weight:600}
main{padding:40px 0 56px}
h1{font-size:clamp(28px,6vw,40px);line-height:1.15;margin:0 0 16px;letter-spacing:-.01em}
h2{font-size:22px;margin:40px 0 12px}
p{margin:0 0 14px}
.lead{font-size:18px;color:var(--muted)}
.btn{display:inline-block;background:var(--accent);color:var(--accent-fg);padding:12px 20px;border-radius:6px;text-decoration:none;font-weight:600;border:0;font-size:16px;cursor:pointer}
.btn:disabled{opacity:.6;cursor:default}
ol.steps{list-style:none;counter-reset:s;padding:0;margin:0;display:grid;gap:12px}
ol.steps li{counter-increment:s;background:var(--soft);border:1px solid var(--line);border-radius:8px;padding:16px 16px 16px 56px;position:relative}
ol.steps li::before{content:counter(s);position:absolute;left:16px;top:15px;width:26px;height:26px;border-radius:50%;background:var(--accent);color:var(--accent-fg);font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center}
ol.steps strong{display:block}
.note{font-size:14px;color:var(--muted)}
.price{font-size:clamp(24px,5vw,30px);font-weight:700;margin:0 0 8px}
form{display:grid;gap:14px;margin-top:24px}
label{display:grid;gap:4px;font-weight:600;font-size:15px}
input,textarea{font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:10px 12px;width:100%}
textarea{min-height:130px;resize:vertical}
.hp{position:absolute;left:-9999px}
#status{min-height:1.6em;font-weight:600}
#status.err{color:#c62828}
footer{border-top:1px solid var(--line);padding:20px 0;font-size:14px;color:var(--muted)}
.tiers{display:grid;gap:16px;margin:28px 0}
@media (min-width:640px){.tiers{grid-template-columns:1fr 1fr}}
.tier{border:1px solid var(--line);border-radius:8px;padding:20px;background:var(--soft);display:flex;flex-direction:column}
.tier h2{margin:0 0 6px;font-size:20px}
.tier .price{font-size:22px}
.tier ul{padding-left:20px;margin:0 0 14px}
.tier li{margin-bottom:6px}
.tier p:last-child{margin-top:auto;margin-bottom:0}
fieldset.choice{border:1px solid var(--line);border-radius:6px;padding:10px 14px;margin:0;display:grid;gap:6px}
fieldset.choice legend{font-weight:600;font-size:15px;padding:0 4px}
fieldset.choice label{display:flex;align-items:center;gap:8px;font-weight:400}
fieldset.choice input{width:auto}
.tiers.one{grid-template-columns:1fr;max-width:420px}
select{font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:10px 12px;width:100%}
.warn{border-left:3px solid #c62828;padding:8px 12px;background:var(--soft)}