:root{color-scheme:light;--ink:#172033;--muted:#6d7687;--line:#dfe4ec;--accent:#2367e8;--surface:#fff;--bg:#f3f6fb}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:"Segoe UI Variable",Segoe UI,sans-serif;color:var(--ink);background:radial-gradient(circle at 20% 0,#fff 0,transparent 34%),var(--bg)}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(100%,420px);padding:42px;border:1px solid rgba(205,213,225,.8);border-radius:24px;background:rgba(255,255,255,.94);box-shadow:0 28px 80px rgba(40,57,86,.12)}.brand-mark{width:46px;height:46px;display:grid;place-items:center;border-radius:14px;background:var(--accent);color:#fff;font:700 28px/1 Georgia,serif}.eyebrow{margin:28px 0 8px;color:var(--accent);font-size:12px;font-weight:750;letter-spacing:.13em}h1{margin:0;font:650 34px/1.15 "Segoe UI Variable",Segoe UI,sans-serif}.lead{margin:12px 0 28px;color:var(--muted);line-height:1.55}form{display:grid;gap:18px}label{display:grid;gap:8px}label span{font-size:13px;font-weight:650}input{width:100%;border:1px solid var(--line);border-radius:12px;padding:13px 14px;background:#fff;color:var(--ink);font:inherit;outline:0}input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(35,103,232,.13)}button{border:0;border-radius:12px;padding:14px 18px;background:var(--accent);color:#fff;font:700 15px/1 inherit;cursor:pointer}button:disabled{opacity:.65;cursor:wait}.error{display:none;margin:-4px 0;color:#b42318;font-size:13px}.error.is-visible{display:block}.login-card small{display:block;margin-top:22px;color:#8991a0;text-align:center}@media(max-width:520px){.login-card{padding:30px 24px;border-radius:20px}}