*{box-sizing:border-box}
body{margin:0;font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:#1f2330;background:#f6f7fb;display:flex;flex-direction:column;min-height:100vh}
a{color:#4338ca;text-decoration:none}a:hover{text-decoration:underline}
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 32px;background:#fff;border-bottom:1px solid #e6e8f0}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:#1f2330}.logo:hover{text-decoration:none}
nav{display:flex;align-items:center;gap:18px}nav>a:not(.btn){color:#4b5164}
.btn{display:inline-block;padding:9px 18px;border-radius:8px;background:#4338ca;color:#fff;font-weight:600;border:1px solid #4338ca;cursor:pointer;font-size:15px}
.btn:hover{background:#3730a3;text-decoration:none}.btn[disabled]{opacity:.6;cursor:wait}
.btn-ghost{background:#fff;color:#4338ca}.btn-ghost:hover{background:#eef0ff}
.btn-lg{padding:13px 26px;font-size:17px}.btn-block{width:100%;padding:12px}
main{flex:1}
.hero{max-width:860px;margin:0 auto;padding:72px 24px 40px;text-align:center}
.hero h1{font-size:42px;line-height:1.15;margin:0 0 18px}.hero p{font-size:19px;color:#4b5164}
.cta{display:flex;gap:12px;justify-content:center;margin:28px 0 10px;flex-wrap:wrap}
.muted{color:#6b7185}.small{font-size:14px}
.grid{max-width:1080px;margin:0 auto;padding:24px;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.grid article{background:#fff;border:1px solid #e6e8f0;border-radius:12px;padding:22px}.grid h3{margin:0 0 8px}.grid p{margin:0;color:#4b5164}
.pricing{max-width:1080px;margin:0 auto;padding:40px 24px 64px;text-align:center}.pricing h2{font-size:32px}
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;text-align:left}
.plan{background:#fff;border:1px solid #e6e8f0;border-radius:14px;padding:26px;display:flex;flex-direction:column}
.plan-main{border:2px solid #4338ca;box-shadow:0 10px 30px rgba(67,56,202,.12)}
.price{font-size:30px;font-weight:700;margin:6px 0 10px}.price span{font-size:15px;font-weight:400;color:#6b7185}
.plan ul{padding-left:18px;color:#4b5164;flex:1}
.auth{display:flex;justify-content:center;padding:56px 16px}
.card{background:#fff;border:1px solid #e6e8f0;border-radius:14px;padding:32px;width:100%;max-width:420px;box-shadow:0 8px 28px rgba(20,24,40,.06)}
.card h1{font-size:24px;margin:0 0 20px}
.card label{display:block;font-size:14px;font-weight:600;margin-bottom:14px;color:#3a3f52}
.card input[type=email],.card input[type=password],.card input[type=text],.card input[type=tel]{display:block;width:100%;margin-top:6px;padding:11px 12px;border:1px solid #cfd3e1;border-radius:8px;font:inherit}
.card input:focus{outline:2px solid #c7c4f7;border-color:#4338ca}
.check{display:flex!important;align-items:center;gap:8px;font-weight:400!important}
.links{text-align:center;font-size:14px;margin:16px 0 0}
.msg{padding:10px 12px;border-radius:8px;font-size:14px;margin-bottom:14px}
.msg.err{background:#fdecec;color:#a12222;border:1px solid #f5c2c2}.msg.ok{background:#e9f8ef;color:#196b3a;border:1px solid #bfe8cf}
.card input.invalid{border-color:#d33;background:#fffafa}
.field-err{display:block;margin-top:5px;font-size:13px;font-weight:400;color:#c02626}
.field-err a{color:#4338ca;cursor:pointer;text-decoration:underline}
.text{max-width:760px;margin:0 auto;padding:48px 24px}.center{text-align:center}.text h1{font-size:34px}
.foot{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;padding:22px;font-size:14px;color:#6b7185;border-top:1px solid #e6e8f0;background:#fff}
@media (max-width:640px){.top{padding:12px 16px}nav>a:not(.btn){display:none}.hero h1{font-size:30px}}