.sf-landing{--sf-blue:#165582;--sf-navy:#11315a;--sf-soft:#eef4f9;--sf-text:#0f172a;--sf-muted:#475569;--sf-line:#dbe5ee;background:linear-gradient(180deg, var(--sf-soft) 0%, #fff 520px);min-height:100vh;color:var(--sf-text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}.sf-landing *,.sf-landing :before,.sf-landing :after{box-sizing:border-box}.sf-landing a{color:inherit}.sf-header{justify-content:space-between;align-items:center;gap:12px;max-width:1080px;margin:0 auto;padding:18px 20px;display:flex}.sf-brand{align-items:center;gap:10px;text-decoration:none;display:flex}.sf-brand img{border-radius:9px}.sf-brand span{flex-direction:column;line-height:1.15;display:flex}.sf-brand strong{color:var(--sf-navy);letter-spacing:.02em;font-size:18px}.sf-brand small{color:var(--sf-muted);letter-spacing:.08em;text-transform:uppercase;font-size:11px}.sf-admin-link{color:var(--sf-muted);border:1px solid var(--sf-line);background:#fff;border-radius:999px;padding:8px 12px;font-size:13px;font-weight:600;text-decoration:none}.sf-admin-link:hover{color:var(--sf-blue);border-color:var(--sf-blue)}.sf-hero{grid-template-columns:1fr;align-items:center;gap:32px;max-width:1080px;margin:0 auto;padding:28px 20px 56px;display:grid}.sf-hero h1{color:var(--sf-navy);letter-spacing:-.01em;margin:0 0 14px;font-size:clamp(30px,6vw,46px);line-height:1.1}.sf-hero p{color:var(--sf-muted);max-width:520px;margin:0 0 22px;font-size:17px}.sf-hero-logo{justify-self:center;display:none}.sf-hero-logo img{width:100%;max-width:320px;height:auto}.sf-card{border:1px solid var(--sf-line);background:#fff;border-radius:16px;max-width:480px;padding:18px;box-shadow:0 10px 30px #11315a14}.sf-card label{color:var(--sf-navy);margin-bottom:8px;font-size:14px;font-weight:700;display:block}.sf-row{gap:8px;display:flex}.sf-row input{letter-spacing:.12em;text-transform:uppercase;min-width:0;color:var(--sf-text);background:#fff;border:1.5px solid #c3d2df;border-radius:10px;flex:1;padding:13px 14px;font-size:18px}.sf-row input::placeholder{letter-spacing:0;text-transform:none;color:#94a3b8;font-size:15px}.sf-row input:focus-visible,.sf-row button:focus-visible,.sf-install-btn:focus-visible,.sf-admin-link:focus-visible{outline-offset:2px;outline:3px solid #7fb2d8}.sf-row button,.sf-install-btn{background:var(--sf-blue);color:#fff;cursor:pointer;border:0;border-radius:10px;min-height:48px;padding:0 22px;font-size:16px;font-weight:700}.sf-row button:hover,.sf-install-btn:hover{background:var(--sf-navy)}.sf-help{color:var(--sf-muted)!important;margin:10px 0 0!important;font-size:13px!important}.sf-error{font-weight:600;color:#b42318!important;margin:10px 0 0!important;font-size:14px!important}.sf-section{max-width:1080px;margin:0 auto;padding:36px 20px}.sf-section h2{color:var(--sf-navy);margin:0 0 18px;font-size:26px}.sf-grid{grid-template-columns:1fr;gap:14px;display:grid}.sf-feature{border:1px solid var(--sf-line);background:#fff;border-radius:14px;padding:18px}.sf-feature svg{color:var(--sf-blue)}.sf-feature h3{color:var(--sf-navy);margin:10px 0 6px;font-size:17px}.sf-feature p{color:var(--sf-muted);margin:0;font-size:14.5px}.sf-install{background:var(--sf-soft);border-radius:20px;max-width:1040px;margin-top:12px}.sf-lead{color:var(--sf-muted);margin:-8px 0 16px}.sf-install-btn{margin-bottom:18px;padding:0 24px}.sf-steps{grid-template-columns:1fr;gap:14px;display:grid}.sf-steps>div{border:1px solid var(--sf-line);background:#fff;border-radius:14px;padding:16px 18px}.sf-steps h3{color:var(--sf-navy);margin:0 0 8px;font-size:16px}.sf-steps ol{color:var(--sf-muted);margin:0;padding-left:20px;font-size:14.5px}.sf-steps li{margin:4px 0}.sf-contact p{margin:0;font-size:17px}.sf-contact a{color:var(--sf-blue);font-weight:600}.sf-footer{text-align:center;color:var(--sf-muted);padding:28px 20px 40px;font-size:13px}@media (min-width:760px){.sf-hero{grid-template-columns:1.15fr .85fr;padding-top:48px}.sf-hero-logo{display:block}.sf-grid{grid-template-columns:repeat(4,1fr)}.sf-steps{grid-template-columns:1fr 1fr}}