:root{color-scheme:light;--bg1:#e9f4ff;--bg2:#f7fbff;--panel:rgba(255,255,255,.88);--text:#172033;--muted:#6d7b8f;--line:#d8e4f2;--blue:#0b84d8;--blue-dark:#066bb0;--soft:#edf6ff}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--text);background:radial-gradient(circle at 18% 14%,rgba(56,151,226,.22),transparent 28%),linear-gradient(135deg,var(--bg1),var(--bg2) 52%,#fff)}.shell{min-height:100%;display:grid;grid-template-rows:1fr auto;place-items:center;padding:40px 20px 24px}.panel{width:min(420px,100%);padding:34px;border:1px solid rgba(160,185,211,.48);border-radius:24px;background:var(--panel);box-shadow:0 22px 60px rgba(37,72,109,.13);backdrop-filter:blur(12px)}.brand{display:flex;align-items:center;gap:15px;margin-bottom:30px}.brand-mark{width:58px;height:58px;display:grid;place-items:center;color:white;border-radius:18px;background:linear-gradient(145deg,#1597e5,#0870bd);box-shadow:inset 0 -1px 0 rgba(0,0,0,.15)}.brand-mark svg{width:38px;height:38px;fill:currentColor}h1{margin:0;font-size:28px;line-height:1.1;letter-spacing:0}p{margin:5px 0 0;color:var(--muted)}.login{display:grid;gap:16px}label{display:grid;gap:7px;font-size:13px;color:#41516a}input{width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--text);font:inherit;outline:none}input:focus{border-color:#72b8ea;box-shadow:0 0 0 4px rgba(11,132,216,.12)}button{height:48px;border:0;border-radius:12px;background:linear-gradient(180deg,var(--blue),var(--blue-dark));color:#fff;font-weight:700;font-size:15px;cursor:pointer}.notice{display:grid;gap:5px;margin-top:20px;padding:14px;border-radius:14px;background:var(--soft);border:1px solid #d7eafa;color:#4d6077;font-size:13px;line-height:1.45}.notice strong{color:#253247}footer{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:22px;color:#718196;font-size:13px}a{color:#246fae;text-decoration:none}a:hover{text-decoration:underline}@media(max-width:520px){.shell{padding:24px 14px 18px}.panel{padding:24px;border-radius:20px}h1{font-size:25px}}