*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:#0f1117;color:#c9d1d9;min-height:100vh;display:flex;align-items:center;justify-content:center}
.login{background:#161b22;border:1px solid #30363d;border-radius:12px;padding:40px;width:100%;max-width:380px}
.logo{text-align:center;margin-bottom:32px}
.logo h1{font-size:22px;font-weight:600;color:#e6edf3}
.logo p{font-size:13px;color:#8b949e;margin-top:6px}
label{display:block;font-size:13px;color:#8b949e;margin-bottom:6px}
input[type="text"],input[type="password"]{width:100%;padding:10px 12px;background:#0d1117;border:1px solid #30363d;border-radius:6px;color:#e6edf3;font-size:14px;outline:none;transition:border-color .2s}
input:focus{border-color:#58a6ff}
.field{margin-bottom:20px}
button{width:100%;padding:10px;background:#238636;border:1px solid #2ea043;border-radius:6px;color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s}
button:hover{background:#2ea043}
button:disabled{opacity:.7;cursor:not-allowed}
.alert-danger{background:#490202;border:1px solid #6e1010;border-radius:6px;padding:10px 12px;font-size:13px;color:#f85149;margin-bottom:20px}