:root{--navy:#07172f;--blue:#0f5bd8;--orange:#ff8a00;--bg:#f3f7fb;--ink:#142033;--muted:#64748b;--line:#dbe7f3}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--ink)}
.nav{min-height:72px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:5}
.nav a,.link-btn{margin-left:10px;text-decoration:none;color:#17345f;font-weight:800;border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 12px;cursor:pointer}
.brand{display:flex!important;align-items:center;gap:10px;margin:0!important;border:0!important;padding:0!important}.brand:first-letter{background:var(--blue)}
.brand{font-size:1.4rem;color:#fff!important;background:linear-gradient(135deg,var(--blue),#15b8d7);border-radius:14px;padding:10px!important}.brand span{color:#fff;font-size:1rem}
.hero{min-height:500px;color:white;background:radial-gradient(circle at 80% 20%,rgba(34,197,94,.28),transparent 25%),linear-gradient(135deg,#07172f,#0f5bd8);display:grid;place-items:center;text-align:left;padding:40px}
.hero>div{width:min(1050px,100%)}.hero h1{font-size:clamp(2.3rem,5vw,4.8rem);line-height:.95;margin:0;max-width:820px}.hero p{max-width:640px;color:#dcecff;font-size:1.1rem;line-height:1.6}.kicker{font-weight:950;letter-spacing:.08em;text-transform:uppercase}
.wrap{width:min(1100px,calc(100% - 32px));margin:32px auto;display:grid;gap:20px}.auth{width:min(520px,calc(100% - 32px));margin:40px auto}
.card{background:white;border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:0 16px 38px rgba(7,23,47,.08)}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.grid input,.grid select,textarea{width:100%;min-height:46px;border:1px solid #cbd8e6;border-radius:12px;padding:10px 12px;font:inherit}.grid button{grid-column:1/-1}
.btn{background:var(--orange);color:#fff;border:0;border-radius:999px;padding:13px 18px;font-weight:950;cursor:pointer;text-decoration:none;display:inline-flex;justify-content:center}
.lead{border:1px solid var(--line);border-radius:16px;padding:14px;margin:10px 0;background:#fbfdff}.lead strong{display:block}.muted{color:var(--muted)}
select.status{width:auto;min-height:38px}
.chat-bubble{position:fixed;right:22px;bottom:22px;background:var(--blue);color:#fff;border:0;border-radius:999px;padding:15px 18px;font-weight:950;box-shadow:0 14px 34px rgba(15,91,216,.35);cursor:pointer;z-index:20}
.chat-box{display:none;position:fixed;right:22px;bottom:82px;width:min(370px,calc(100% - 32px));background:white;border:1px solid var(--line);border-radius:20px;padding:16px;box-shadow:0 22px 70px rgba(7,23,47,.25);z-index:20}
.chat-box.open{display:block}.chat-messages{height:220px;overflow:auto;background:#f7fbff;border-radius:14px;padding:10px;margin:10px 0}.msg{padding:9px 10px;border-radius:12px;margin:6px 0;background:#fff;border:1px solid var(--line)}.msg.assistant{background:#edf6ff}
@media(max-width:700px){.grid{grid-template-columns:1fr}.nav{align-items:stretch;flex-direction:column;padding:12px}.nav div{display:flex;flex-wrap:wrap;gap:8px}.nav a,.link-btn{margin-left:0}.hero{padding:28px 18px}}