:root { --bg:#0b1020; --card:#121936; --text:#e6e9f5; --muted:#9aa4bf; --brand:#5b8cff; --brand-2:#00e0a4; }
*{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Arial}
a{color:var(--brand);text-decoration:none} a:hover{text-decoration:underline}
.container{max-width:1120px;margin:0 auto;padding:0 16px}
.nav{position:sticky;top:0;background:rgba(11,16,32,.6);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid #1d2547}
.nav .container{display:flex;justify-content:space-between;align-items:center;height:64px}
.brand{font-weight:700;color:#fff}
nav a{margin-left:16px}
.btn{display:inline-block;padding:.7rem 1rem;border:1px solid #2a3569;border-radius:10px;background:#1a2146;color:#fff}
.btn:hover{background:#222a55}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));border:0}
.btn.primary.lg{padding:1rem 1.25rem;border-radius:12px;font-weight:700}
.btn.ghost{background:transparent;border-color:#394279}
.hero{padding:64px 0 48px;border-bottom:1px solid #1d2547}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center}
.hero-copy h1{font-size:42px;line-height:1.1;margin:0 0 12px}
.hero-copy .sub{color:var(--muted);margin-top:.5rem}
.hero-art img{width:100%;max-width:520px;border-radius:16px;box-shadow:0 15px 60px rgba(0,0,0,.35)}
.cta{display:flex;gap:12px;margin:18px 0 0}
.features{padding:56px 0;border-bottom:1px solid #1d2547}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--card);padding:18px;border-radius:14px;border:1px solid #1f284d}
.how{padding:56px 0}
.steps{background:var(--card);padding:18px;border-radius:14px;border:1px solid #1f284d}
.cta-band{padding:48px 0;background:linear-gradient(180deg,rgba(91,140,255,.08),rgba(0,224,164,.08))}
.cta-band-inner{display:flex;justify-content:space-between;align-items:center}
.faq{padding:56px 0}
details{background:var(--card);padding:14px 16px;border-radius:12px;border:1px solid #1f284d;margin-bottom:10px}
.footer{display:flex;justify-content:space-between;align-items:center;padding:24px 0;color:var(--muted)}
.doc main{padding:48px 0}
@media(max-width:900px){ .hero-inner{grid-template-columns:1fr} .grid-3{grid-template-columns:1fr} .cta-band-inner{flex-direction:column;gap:12px} }
/* ---- Auth page ---- */
.auth-wrap{min-height:calc(100vh - 64px - 72px);display:grid;place-items:center;padding:32px}
.auth-card{width:100%;max-width:420px;background:var(--card);border:1px solid #1f284d;border-radius:16px;padding:24px 20px;box-shadow:0 10px 40px rgba(0,0,0,.25)}
.auth-brand{display:flex;flex-direction:column;gap:4px;margin-bottom:14px}
.auth-brand .logo-dot{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
.auth-brand h1{margin:8px 0 0;font-size:24px}
.muted{color:var(--muted)}
.field{display:flex;flex-direction:column;margin:12px 0}
.field label{margin-bottom:6px;font-weight:600}
.field input{background:#0f1533;border:1px solid #243062;border-radius:10px;color:#fff;padding:12px 12px;outline:none}
.field input:focus{border-color:#3b4aa6;box-shadow:0 0 0 3px rgba(59,74,166,.25)}
.password-row{display:flex;gap:8px}
.password-row .toggle{border:1px solid #2a3569;background:#16204a;color:#fff;border-radius:8px;padding:0 10px}
.field-error{color:#ff6b6b;margin-top:6px}
.actions{display:flex;justify-content:space-between;align-items:center;margin-top:10px}
.btn{display:inline-block;padding:.75rem 1rem;border:1px solid #2a3569;border-radius:10px;background:#1a2146;color:#fff}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));border:0;font-weight:700}
.link{color:#9bb0ff}
.alert{padding:10px 12px;border-radius:10px;margin:8px 0;font-size:.95rem}
.alert.error{background:rgba(255,77,77,.12);border:1px solid rgba(255,77,77,.35)}
.alert.success{background:rgba(0,224,164,.12);border:1px solid rgba(0,224,164,.35)}
.meta{display:flex;gap:8px;justify-content:center;margin-top:14px}