:root{--brand:#2454ff;--ink:#14213d;--muted:#6c757d;--soft:#f5f7fb}body{background:var(--soft);color:var(--ink)}.navbar{box-shadow:0 6px 20px rgba(20,33,61,.08)}.hero{padding:64px 0;background:linear-gradient(135deg,#fff,#edf3ff)}.card{border:0;border-radius:18px;box-shadow:0 10px 28px rgba(20,33,61,.08)}.btn{border-radius:12px}.form-control,.form-select{border-radius:12px}.badge-soft{background:#edf3ff;color:#2454ff}.sidebar-card a{text-decoration:none}.table td,.table th{vertical-align:middle}.small-muted{font-size:.88rem;color:var(--muted)}pre{background:#111827;color:#f8fafc;border-radius:14px;padding:16px}.login-shell{min-height:70vh;display:flex;align-items:center}.login-card{max-width:460px;margin:auto}.module-tile{transition:.2s}.module-tile:hover{transform:translateY(-2px)}