.sedtec-portal{font-family:Arial,Helvetica,sans-serif;background:#08162f;color:#f4f7ff;min-height:100vh}
.sedtec-portal *{box-sizing:border-box}
.sedtec-shell{max-width:1280px;margin:0 auto;padding:32px}
.sedtec-panel,.sedtec-card,.sedtec-sidebar{background:rgba(15,35,70,.94);border:1px solid rgba(173,208,255,.18);border-radius:18px;box-shadow:0 20px 50px rgba(2,8,23,.35)}
.sedtec-panel{padding:28px}
.sedtec-panel-centered{max-width:620px;margin:4vh auto}
.sedtec-sidebar{padding:24px;min-width:280px}
.sedtec-brand{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#b8c7e6;margin-bottom:8px}
.sedtec-muted{color:#b8c7e6;line-height:1.5}
.sedtec-error{background:#3b0d12;color:#fecaca;border:1px solid #7f1d1d;padding:12px 14px;border-radius:12px;margin-bottom:16px}
.sedtec-portal input,.sedtec-portal select,.sedtec-portal textarea{width:100%;padding:14px 16px;border-radius:12px;border:1px solid rgba(173,208,255,.24);background:#fff;color:#111827;margin:8px 0 18px}
.sedtec-btn,.sedtec-portal button{display:inline-flex;align-items:center;justify-content:center;padding:14px 18px;border-radius:12px;background:#2f7dff;color:#fff;text-decoration:none;border:0;cursor:pointer;font-weight:700}
.sedtec-btn-secondary{background:#16325e}
.sedtec-btn.is-disabled{opacity:.6;pointer-events:auto}
.sedtec-meta-grid,.sedtec-grid{display:grid;gap:16px}
.sedtec-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.sedtec-meta-grid{grid-template-columns:repeat(3,minmax(0,1fr));margin-bottom:20px}
.sedtec-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.sedtec-card{padding:20px}
.sedtec-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:20px}
.sedtec-valid{font-size:18px;font-weight:700;color:#dbeafe;margin:4px 0 10px}
.sedtec-code{font-size:14px;color:#c7d2fe;word-break:break-word;margin-bottom:18px}
.sedtec-actions{display:grid;gap:10px;margin-bottom:16px}
.sedtec-grid label{display:block;font-size:12px;text-transform:uppercase;color:#b8c7e6;margin-bottom:6px}
.sedtec-grid span{display:block;background:rgba(255,255,255,.04);border:1px solid rgba(173,208,255,.12);padding:12px 14px;border-radius:12px;min-height:48px}
.sedtec-preview-note{color:#b8c7e6;font-size:13px}
.sedtec-preview-block{margin-top:24px}
.sedtec-preview-frame{width:100%;min-height:1120px;border:1px solid rgba(173,208,255,.18);border-radius:16px;background:#fff}
@media (max-width: 980px){
  .sedtec-layout{grid-template-columns:1fr}
  .sedtec-grid,.sedtec-meta-grid,.sedtec-cards{grid-template-columns:1fr}
  .sedtec-shell{padding:20px}
  .sedtec-preview-frame{min-height:820px}
}