:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#111827;background:#f8fafc}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{background:radial-gradient(circle at top,#e0f2fe,#fff 45%,#f8fafc)}button{font:inherit}.page-shell{width:min(100%,560px);margin:40px auto;padding:16px}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.brand{font-size:1.15rem;font-weight:700}.logout-btn{background:#2563eb;color:#fff;border:none;padding:.85rem 1.2rem;border-radius:999px;cursor:pointer}.card{background:#fff;border:1px solid #e2e8f0;border-radius:24px;box-shadow:0 20px 50px #0f172a14;padding:24px}.tabs{display:flex;gap:.75rem;margin-bottom:1.5rem}.tab{flex:1;padding:.9rem 1rem;border:1px solid #e2e8f0;background:transparent;border-radius:999px;cursor:pointer;color:#475569}.tab.active{color:#1d4ed8;border-color:#bfdbfe;background:#eff6ff}.form{display:grid;gap:1rem}label{display:grid;gap:.45rem;font-size:.95rem;color:#334155}input{width:100%;padding:.95rem 1rem;border-radius:16px;border:1px solid #cbd5e1}.action-btn{width:100%;padding:1rem;border:none;border-radius:16px;background:#2563eb;color:#fff;font-weight:700;cursor:pointer}.welcome-card{text-align:center}.welcome-card h1{margin-top:0}.error-box{margin-top:1rem;border-radius:16px;padding:1rem;background:#fee2e2;color:#b91c1c;border:1px solid #fecaca}