:root{--bg:#eef1f5;--panel:rgba(255,255,255,.86);--panel-solid:#fff;--text:#1e2430;--muted:#687386;--line:rgba(40,50,65,.14);--accent:#4f7cff;--shadow:0 22px 55px rgba(20,30,45,.16);--radius:18px;font-family:Inter,Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body{margin:0;background:linear-gradient(135deg,#f8fafc,#dde3ec);color:var(--text);min-height:100vh}.btn,button{font:inherit}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:0;border-radius:14px;padding:.85rem 1rem;text-decoration:none;cursor:pointer}.primary{background:var(--accent);color:white}.login-body{display:grid;place-items:center;padding:2rem}.login-card{width:min(440px,94vw);background:var(--panel);backdrop-filter:blur(18px);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:26px;padding:2rem;display:grid;gap:1rem}.login-card h1{margin:0;font-size:1.8rem}.login-card p{color:var(--muted);margin:0}.login-card label{display:grid;gap:.35rem;color:var(--muted)}.login-card input{border:1px solid var(--line);border-radius:14px;padding:.9rem;background:white}.alert{background:#fff3cd;color:#7a5200;border:1px solid #ffe49b;border-radius:14px;padding:.8rem}.module-card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem}.module-card-grid article{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:16px;padding:1rem;display:grid;gap:.35rem}.module-card-grid span{color:var(--muted)}