*,:before,:after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:#0f1117;color:#e1e4e8;min-height:100vh}
.auth-page,.setup-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#0f1117 0%,#161b22 100%)}
.auth-container{background:#1c2128;border:1px solid #30363d;border-radius:12px;padding:40px;width:100%;max-width:420px;box-shadow:0 8px 32px rgba(0,0,0,.4)}
.auth-logo{text-align:center;margin-bottom:32px}
.auth-logo h1{font-size:28px;color:#58a6ff;letter-spacing:1px}
.auth-subtitle{color:#8b949e;font-size:14px;margin-top:4px;display:block}
.auth-form .form-group{margin-bottom:20px}
.auth-form label{display:block;color:#c9d1d9;font-size:13px;margin-bottom:6px;font-weight:500}
.auth-form input[type="text"],.auth-form input[type="email"],.auth-form input[type="password"],.auth-form select{width:100%;padding:10px 14px;background:#0d1117;border:1px solid #30363d;border-radius:6px;color:#e1e4e8;font-size:14px;transition:border-color .2s}
.auth-form input:focus,.auth-form select:focus{outline:none;border-color:#58a6ff}
.btn{display:inline-block;padding:10px 20px;border:1px solid #30363d;border-radius:6px;cursor:pointer;font-size:14px;background:#21262d;color:#c9d1d9;text-decoration:none;transition:background .2s}
.btn:hover{background:#30363d}
.btn-primary{background:#238636;border-color:#238636;color:#fff}
.btn-primary:hover{background:#2ea043}
.btn-full{width:100%;text-align:center}
.btn-sm{padding:4px 12px;font-size:12px}
.form-status{padding:10px 14px;border-radius:6px;font-size:13px;margin-bottom:16px}
.form-status.error{background:#3d1f1f;color:#f85149;border:1px solid #f8514940}
.form-status.success{background:#1f3d1f;color:#3fb950;border:1px solid #3fb95040}
.form-status.info{background:#1f2d3d;color:#58a6ff;border:1px solid #58a6ff40}