:root{--bg:#f4f8fb;--card:#fff;--ink:#0b2540;--muted:#4d647c;--line:#dbe6ee;--acc:var(--app,#0a5c8f)}
@media (prefers-color-scheme:dark){:root{--bg:#0a1219;--card:#121c26;--ink:#eaf2f8;--muted:#a9bccb;--line:#233444}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 -apple-system,system-ui,"Helvetica Neue",sans-serif}
a{color:#0a5c8f}@media (prefers-color-scheme:dark){a{color:#7cc4ee}}
header{max-width:720px;margin:0 auto;padding:22px 20px 0;display:flex;gap:14px;align-items:center}
header img{width:56px;height:56px;border-radius:13px}header b{font-size:1.25rem}
nav{margin-left:auto;font-size:.95rem}nav a{margin-left:14px}
main{max-width:720px;margin:0 auto;padding:10px 20px 70px}
h1{font-size:2rem;line-height:1.2;margin:.8em 0 .3em}h2{font-size:1.2rem;margin:1.8em 0 .4em}
p,li{color:var(--muted)}li{margin:.3em 0}.lead{font-size:1.15rem;color:var(--ink)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:6px 20px 14px;margin:18px 0}
.btn{display:inline-block;background:var(--acc);color:#fff;text-decoration:none;font-weight:700;padding:12px 20px;border-radius:12px;margin:6px 8px 6px 0}
.btn.soft{background:transparent;color:var(--ink);border:1px solid var(--line)}
.d{color:var(--muted);font-size:.9rem}.tiers{display:grid;grid-template-columns:1fr 1fr;gap:20px}.tiers h3{margin:.9em 0 .2em;font-size:1.05rem}.tiers ul{padding-left:1.1em;margin:.3em 0}@media (max-width:560px){.tiers{grid-template-columns:1fr}}footer{max-width:720px;margin:0 auto;padding:0 20px 40px;color:var(--muted);font-size:.9rem}