:root{
  --orca:#00808A;
  --orca-dark:#006B73;
  --soft:#F3F8F8;
  --soft-2:#E8F5F6;
  --text:#173033;
  --muted:#6B7F82;
  --border:#DCE9EA;
  --white:#FFFFFF;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Arial,sans-serif;background:var(--soft);color:var(--text)}
a{text-decoration:none;color:inherit}
.portal-shell{width:min(1120px,calc(100% - 28px));margin:0 auto;padding:34px 0 54px}
.portal-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:34px}
.brand-block h1{margin:0;color:var(--orca);font-size:30px;letter-spacing:.2px}
.brand-block p{margin:6px 0 0;color:var(--muted);font-size:13px;font-weight:700;letter-spacing:1.7px}
.badge{padding:9px 12px;border-radius:999px;background:var(--soft-2);color:var(--orca-dark);font-size:12px;font-weight:800}
.hero{padding:34px;background:var(--white);border:1px solid var(--border);border-radius:22px;margin-bottom:18px}
.hero .eyebrow{color:var(--orca);font-size:11px;font-weight:900;letter-spacing:1.4px;text-transform:uppercase;margin-bottom:9px}
.hero h2{margin:0 0 10px;font-size:32px}
.hero p{margin:0;color:var(--muted);line-height:1.7;max-width:720px}
.system-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.system-card{display:flex;flex-direction:column;min-height:210px;padding:22px;background:var(--white);border:1px solid var(--border);border-radius:18px;transition:.18s ease}
.system-card:hover{transform:translateY(-2px);border-color:#BBDCDD;box-shadow:0 12px 34px rgba(0,96,103,.08)}
.system-card .tag{color:var(--orca);font-size:10px;font-weight:900;letter-spacing:1.2px;text-transform:uppercase}
.system-card h3{margin:12px 0 8px;font-size:20px}
.system-card p{margin:0;color:var(--muted);line-height:1.55;font-size:13px}
.open-row{margin-top:auto;padding-top:20px;display:flex;align-items:center;justify-content:space-between;color:var(--orca-dark);font-weight:900}
.footer{margin-top:24px;color:var(--muted);font-size:11px;text-align:center}

.app-page{margin:0;background:#fff;overflow:hidden}
.frame-wrap{position:fixed;inset:0;background:#fff;opacity:0;transition:opacity .28s ease}
.frame-wrap.ready{opacity:1}
.app-frame{width:100%;height:100vh;margin:0;border:0;background:#fff}

.loader-screen{
  position:fixed;inset:0;z-index:9999;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,#f6fbfb 0%,#eef7f7 100%);
  transition:opacity .28s ease, visibility .28s ease;
}
.loader-screen.hidden{
  opacity:0;
  visibility:hidden;
  pointer-events:none;
}
.loader-card{
  width:min(420px,calc(100% - 32px));
  padding:32px 24px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:20px;
  text-align:center;
  box-shadow:0 18px 60px rgba(0,80,87,.08);
}
.loader-brand{
  color:var(--orca);
  font-size:28px;
  font-weight:900;
  letter-spacing:.7px;
}
.loader-tagline{
  margin-top:6px;
  color:var(--muted);
  font-size:11px;
  font-weight:800;
  letter-spacing:1.7px;
}
.spinner{
  width:38px;height:38px;
  margin:24px auto 18px;
  border:4px solid #d8e9ea;
  border-top-color:var(--orca);
  border-radius:50%;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.loader-title{font-size:18px;font-weight:900}
.loader-note{margin-top:8px;color:var(--muted);font-size:12px;line-height:1.55}
.loader-note.slow{color:#8a5b00}
.app-error{display:grid;place-items:center;min-height:100vh;padding:24px;background:var(--soft)}
.app-error-card{max-width:560px;padding:28px;background:#fff;border:1px solid var(--border);border-radius:18px;text-align:center}
.app-error-card h1{margin:0 0 10px;color:var(--orca)}
.app-error-card p{color:var(--muted);line-height:1.6}
.home-link{display:inline-block;margin-top:14px;padding:11px 14px;border-radius:10px;background:var(--orca);color:#fff;font-weight:800}

@media(max-width:820px){
  .system-grid{grid-template-columns:1fr}
  .portal-head{align-items:flex-start}
  .hero{padding:24px}
  .hero h2{font-size:26px}
}