:root{
  --blue:#2676ff;
  --navy:#173a70;
  --green:#26b67a;
  --slate:#6c7a92;
  --bg:#f3f7fb;
  --text:#16304d;
  --card:#ffffff;
}
body{
  background:linear-gradient(180deg,#f2f7fd 0%,#eef3f9 100%);
  color:var(--text);
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
}
.shell-90{width:min(90%,1720px);margin:0 auto;}
.topbar{
  background:linear-gradient(90deg,#14325d 0%,#22539a 55%,#2676ff 100%);
  box-shadow:0 10px 30px rgba(27,65,120,.15);
}
.topbar .navbar-brand,.topbar .nav-link,.topbar .userbox{color:#fff!important;}
.topbar .nav-link{opacity:.92;font-weight:500}
.topbar .nav-link:hover{opacity:1}
.hero-card,.soft-card,.tile-card,.auth-card{border-radius:22px;}
.hero-card{
  background:linear-gradient(120deg,#ffffff 0%,#eff5ff 55%,#eaf7f1 100%);
  border:1px solid rgba(27,84,150,.08);
  box-shadow:0 20px 50px rgba(25,68,120,.08);
}
.hero-icon-wrap{
  width:120px;height:120px;border-radius:30px;background:linear-gradient(135deg,#dbe9ff,#dff9eb);
  display:flex;align-items:center;justify-content:center;box-shadow:inset 0 0 0 1px rgba(38,118,255,.1);
}
.hero-icon{font-size:56px;color:var(--navy)}
.tile-card{
  display:flex;gap:18px;align-items:center;padding:24px;text-decoration:none;color:inherit;background:#fff;
  min-height:150px;border:1px solid rgba(0,0,0,.04);box-shadow:0 16px 34px rgba(19,57,105,.08);
  transition:transform .18s ease, box-shadow .18s ease;
}
.tile-card:hover{transform:translateY(-3px);box-shadow:0 20px 38px rgba(19,57,105,.12)}
.tile-icon{
  width:68px;height:68px;border-radius:20px;display:flex;align-items:center;justify-content:center;
  font-size:30px;color:#fff;flex-shrink:0;
}
.tile-card h3{font-size:1.18rem;margin:0 0 6px;font-weight:700}
.tile-card p{margin:0;color:#5d6f86}
.tile-blue .tile-icon{background:linear-gradient(135deg,#2676ff,#4ea2ff)}
.tile-navy .tile-icon{background:linear-gradient(135deg,#18325b,#2a5691)}
.tile-green .tile-icon{background:linear-gradient(135deg,#20a56d,#47d69f)}
.tile-slate .tile-icon{background:linear-gradient(135deg,#617086,#8fa0b7)}
.soft-card{background:#fff;border:1px solid rgba(0,0,0,.04);box-shadow:0 14px 34px rgba(19,57,105,.07)}
.feature-list{padding-left:1.2rem}
.feature-list li{margin-bottom:.45rem}
.footer-strip{border-top:1px solid rgba(23,58,112,.08);background:rgba(255,255,255,.65);backdrop-filter:blur(4px)}
.auth-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px;background:radial-gradient(circle at top right,#dfefff 0%,#f4f8fc 45%,#eef7f3 100%)}
.auth-card{width:min(560px,94vw);background:rgba(255,255,255,.97)}
.auth-brand{width:78px;height:78px;border-radius:24px;background:linear-gradient(135deg,#1d4ea0,#2684ff);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:36px}
.btn-dark-blue{background:#173a70;color:#fff;border-color:#173a70}
.btn-dark-blue:hover{background:#102948;color:#fff;border-color:#102948}
.pill-muted{border-radius:999px;padding:.4rem .8rem;background:#eef4fb;color:#335;font-size:.9rem}
.table-soft{background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 14px 34px rgba(19,57,105,.07)}
.module-hero{background:linear-gradient(120deg,#fff,#eff5ff);border-radius:22px;padding:28px;border:1px solid rgba(0,0,0,.04)}
.editor{font-family:Consolas,monospace;min-height:280px}
@media (max-width:991.98px){.shell-90{width:min(94%,1720px)}}