:root{--bg: #0d1117;--bg-secondary: #161b22;--bg-tertiary: #21262d;--bg-hover: #292e36;--border: #30363d;--text: #e6edf3;--text-secondary: #8b949e;--accent: #2f81f7;--accent-hover: #388bfd;--success: #3fb950;--error: #f85149;--radius: 8px;--radius-sm: 4px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased}#root{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.auth-container{width:100%;max-width:400px;padding:16px}.auth-logo{text-align:center;margin-bottom:24px}.auth-logo h1{font-size:24px;font-weight:700;color:var(--text)}.auth-logo p{font-size:13px;color:var(--text-secondary);margin-top:4px}.auth-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.auth-card h2{font-size:18px;font-weight:600;margin-bottom:16px}.form-group{margin-bottom:14px}.form-label{display:block;font-size:13px;font-weight:500;color:var(--text);margin-bottom:4px}.form-label-optional{color:var(--text-secondary);font-weight:400}.form-input{width:100%;padding:8px 12px;font-size:14px;font-family:var(--font-sans);color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);outline:none;transition:border-color .15s}.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #2f81f726}.form-input::placeholder{color:var(--text-secondary)}.password-wrapper{position:relative}.password-toggle{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:12px;padding:4px}.password-toggle:hover{color:var(--text)}.checkbox-label{display:flex;align-items:flex-start;gap:8px;cursor:pointer;font-size:13px;color:var(--text-secondary);line-height:1.4}.checkbox-label input[type=checkbox]{margin-top:2px;accent-color:var(--accent)}.username-wrapper{position:relative}.username-status{position:absolute;right:10px;top:50%;transform:translateY(-50%);font-size:13px;font-weight:600;pointer-events:none}.username-checking{color:var(--text-secondary);font-weight:400;font-size:12px}.username-available{color:var(--success)}.username-taken{color:var(--error)}.form-input-error{border-color:var(--error)!important}.form-input-error:focus{box-shadow:0 0 0 3px #f8514926!important}.form-input-success{border-color:var(--success)!important}.form-input-success:focus{box-shadow:0 0 0 3px #3fb95026!important}.form-hint{font-size:12px;color:var(--text-secondary);margin-top:4px;line-height:1.4}.form-hint-error{color:var(--error)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;font-size:14px;font-weight:500;font-family:var(--font-sans);border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-tertiary);color:var(--text);cursor:pointer;transition:background .15s,border-color .15s;text-decoration:none}.btn:hover{background:var(--bg-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-full{width:100%}.link-btn{background:none;border:none;color:var(--accent);cursor:pointer;font-size:inherit;font-family:var(--font-sans);padding:0}.link-btn:hover{text-decoration:underline}.alert{padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;margin-bottom:14px}.alert-error{background:#f851491a;border:1px solid rgba(248,81,73,.3);color:#f85149}.alert-success{background:#3fb9501a;border:1px solid rgba(63,185,80,.3);color:#3fb950}.alert-info{background:#2f81f71a;border:1px solid rgba(47,129,247,.3);color:#58a6ff}.auth-footer{margin-top:16px;text-align:center;font-size:13px;color:var(--text-secondary)}.auth-footer a,.auth-footer .link-btn{font-size:13px}.success-icon{font-size:48px;margin-bottom:16px}.centered{text-align:center}.centered p{color:var(--text-secondary);font-size:14px;margin-bottom:16px;line-height:1.5}.redirect-notice{margin-top:16px;padding:12px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);text-align:center}.redirect-notice p{font-size:13px;color:var(--text-secondary);margin-bottom:8px}.redirect-countdown{font-size:12px;color:var(--text-secondary);margin-top:8px}.account-info{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}.account-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--border)}.account-row:last-child{border-bottom:none}.account-label{font-size:13px;color:var(--text-secondary)}.account-value{font-size:14px;color:var(--text);display:flex;align-items:center;gap:8px}.account-actions{margin-top:16px}.account-hint{font-size:13px;color:var(--text-secondary);text-align:center;margin:12px 0;line-height:1.4}.badge{display:inline-block;padding:2px 8px;font-size:11px;font-weight:500;border-radius:10px;line-height:1.4}.badge-success{background:#3fb95026;color:#3fb950}.badge-warning{background:#d2992226;color:#d29922}.badge-accent{background:#2f81f726;color:#58a6ff}.badge-default{background:var(--bg-tertiary);color:var(--text-secondary)}