:root{
  --bg1:#f8fafc; --bg2:#eef2ff; --card:#ffffff; --text:#0f172a; --muted:#64748b;
  --line:#e2e8f0; --blue:#2563eb; --indigo:#4f46e5; --dark:#020617;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Arial,Helvetica,sans-serif;
  color:var(--text);
  background:radial-gradient(circle at top, rgba(59,130,246,.08), transparent 28%), linear-gradient(180deg,var(--bg1),var(--bg2));
}
.topbar{background:var(--dark);color:#fff;border-bottom:1px solid #1e293b}
.wrap{max-width:1100px;margin:0 auto;padding:16px}
.row{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.brand{display:flex;gap:12px;align-items:center}
.logo{
  width:48px;height:48px;border-radius:16px;background:#fff;color:var(--dark);
  display:flex;align-items:center;justify-content:center;font-weight:800
}
.card{
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);
  border-radius:24px;
  padding:20px;
  box-shadow:0 12px 40px rgba(15,23,42,.08)
}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.btn{
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  min-height:48px;
  border-radius:18px;
  padding:12px 16px;
  font-weight:700;
  cursor:pointer
}
.btn.primary{background:linear-gradient(90deg,var(--blue),var(--indigo));color:#fff;border:none}
.btn.dark{background:#0f172a;color:#fff;border:1px solid #334155}
.btn.active{background:#0f172a;color:#fff;border:1px solid #334155}
input,select{
  width:100%;min-height:48px;border:1px solid var(--line);border-radius:18px;padding:12px 14px;font-size:15px
}
label{display:grid;gap:8px;font-size:14px;font-weight:700;color:#334155}
.muted{color:var(--muted)}
.small{font-size:13px}
.listItem{border:1px solid var(--line);border-radius:18px;padding:16px}
.notice{padding:14px 16px;border-radius:18px;background:#eff6ff;border-left:4px solid #3b82f6}
.success{padding:14px 16px;border-radius:18px;background:#ecfdf5;border-left:4px solid #16a34a}
.statusPill{
  display:inline-flex;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:700;
  background:#fef3c7;color:#b45309
}
.resultError{color:#dc2626}
.heroBtn{min-height:140px;text-align:left;display:grid;align-content:center}
@media (max-width:800px){
  .g2{grid-template-columns:1fr}
  .wrap{padding:12px}
}



/* Installer landing improvements */
.sfAuthGrid{min-height:calc(100vh - 180px)}
.sfInstallerHero{
  background:
    radial-gradient(circle at top right, rgba(79,70,229,.14), transparent 32%),
    radial-gradient(circle at bottom left, rgba(14,165,233,.12), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border:1px solid rgba(37,99,235,.08);
}
.sfHeroBadge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:8px 12px;
  border-radius:999px;
  background:#e0f2fe;
  color:#0f172a;
  font-weight:800;
  font-size:13px;
  margin-bottom:14px;
}
.sfHeroTitle{
  margin:0 0 12px 0;
  font-size:clamp(30px,4vw,48px);
  line-height:1.03;
  letter-spacing:-0.03em;
  color:#0f172a;
}
.sfHeroText{
  margin:0 0 18px 0;
  font-size:18px;
  line-height:1.6;
  color:#475569;
  max-width:720px;
}
.sfBenefitGrid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
  margin-top:12px;
}
.sfBenefitCard{
  background:rgba(255,255,255,.86);
  border:1px solid rgba(15,23,42,.08);
  border-radius:18px;
  padding:16px;
  box-shadow:0 10px 24px rgba(15,23,42,.05);
}
.sfBenefitTitle{
  font-size:16px;
  font-weight:800;
  color:#0f172a;
  margin-bottom:6px;
}
.sfBenefitText{
  font-size:14px;
  line-height:1.5;
  color:#64748b;
}
.sfInstallerNotes{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:18px;
}
.sfNotePill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid rgba(15,23,42,.08);
  color:#0f172a;
  font-weight:700;
  font-size:13px;
}
.sfLoginCard{
  position:sticky;
  top:18px;
}

@media (max-width: 980px){
  .sfAuthGrid{
    grid-template-columns:1fr !important;
    gap:16px !important;
    min-height:auto;
  }
  .sfInstallerHero{padding:20px !important}
  .sfLoginCard{position:static}
  .sfHeroTitle{
    font-size:34px;
    line-height:1.06;
  }
  .sfHeroText{
    font-size:16px;
    margin-bottom:14px;
  }
  .sfBenefitGrid{
    grid-template-columns:1fr;
    gap:10px;
  }
  .sfBenefitCard{
    padding:14px;
    border-radius:16px;
  }
}

@media (max-width: 640px){
  .sfInstallerHero{
    order:2;
  }
  .sfLoginCard{
    order:1;
  }
  .sfHeroBadge{
    font-size:12px;
    padding:7px 10px;
    margin-bottom:10px;
  }
  .sfHeroTitle{
    font-size:30px;
  }
  .sfHeroText{
    font-size:15px;
    line-height:1.55;
  }
  .sfNotePill{
    padding:9px 12px;
    font-size:12px;
  }
}



/* Refined installer landing */
.brandLogo{
  width:44px;
  height:44px;
  border-radius:12px;
  object-fit:cover;
  flex:0 0 auto;
  box-shadow:0 6px 18px rgba(0,0,0,.18);
}
.sfInstallerHero{
  background:
    radial-gradient(circle at top right, rgba(79,70,229,.14), transparent 32%),
    radial-gradient(circle at bottom left, rgba(14,165,233,.12), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border:1px solid rgba(37,99,235,.08);
}
.sfHeroBadge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:8px 12px;
  border-radius:999px;
  background:#e0f2fe;
  color:#0f172a;
  font-weight:800;
  font-size:13px;
  margin-bottom:14px;
}
.sfHeroTitle{
  margin:0 0 12px 0;
  font-size:clamp(30px,4vw,48px);
  line-height:1.03;
  letter-spacing:-0.03em;
  color:#0f172a;
}
.sfHeroText{
  margin:0 0 18px 0;
  font-size:18px;
  line-height:1.6;
  color:#475569;
  max-width:720px;
}
.sfBenefitGrid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
  margin-top:12px;
}
.sfBenefitCard{
  background:rgba(255,255,255,.9);
  border:1px solid rgba(15,23,42,.08);
  border-radius:18px;
  padding:16px;
  box-shadow:0 10px 24px rgba(15,23,42,.05);
}
.sfBenefitTitle{
  font-size:16px;
  font-weight:800;
  color:#0f172a;
  margin-bottom:6px;
}
.sfBenefitText{
  font-size:14px;
  line-height:1.5;
  color:#64748b;
}
.sfMiniSpecRow{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:16px;
}
.sfMiniSpec{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 14px;
  border-radius:12px;
  background:#0f172a;
  color:#fff;
  font-weight:700;
  font-size:13px;
}
.sfInstallerNotes{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:18px;
}
.sfNotePill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid rgba(15,23,42,.08);
  color:#0f172a;
  font-weight:700;
  font-size:13px;
}
.sfLoginCard{position:sticky;top:18px}
.sfAuthGrid{min-height:calc(100vh - 180px)}

@media (max-width: 980px){
  .sfAuthGrid{
    grid-template-columns:1fr !important;
    gap:16px !important;
    min-height:auto;
  }
  .sfInstallerHero{padding:20px !important}
  .sfLoginCard{position:static}
  .sfHeroTitle{font-size:34px;line-height:1.06}
  .sfHeroText{font-size:16px;margin-bottom:14px}
  .sfBenefitGrid{grid-template-columns:1fr;gap:10px}
  .sfBenefitCard{padding:14px;border-radius:16px}
}
@media (max-width: 640px){
  .sfInstallerHero{order:2}
  .sfLoginCard{order:1}
  .sfHeroBadge{font-size:12px;padding:7px 10px;margin-bottom:10px}
  .sfHeroTitle{font-size:30px}
  .sfHeroText{font-size:15px;line-height:1.55}
  .sfNotePill{padding:9px 12px;font-size:12px}
  .sfMiniSpec{font-size:12px;padding:9px 12px}
}