:root{--primary: #1a73e8;--primary-hover: #1557b0;--bg-color: #f0f2f5;--text-main: #202124;--text-sub: #5f6368;--border: #dadce0;--error-bg: #fce8e6;--error-text: #c5221f}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Roboto,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:var(--bg-color);color:var(--text-main);display:flex;min-height:100vh;justify-content:center;align-items:center}.app-container{width:100%;display:flex;justify-content:center;padding:16px}.auth-card{background:#fff;width:100%;max-width:448px;padding:48px 40px 36px;border-radius:8px;box-shadow:0 1px 3px #0000001a,0 1px 2px #0000000f;display:flex;flex-direction:column;transition:all .2s ease}@media(max-width:500px){.auth-card{max-width:100%;padding:24px;box-shadow:none;background:transparent}body{background:#fff;align-items:flex-start}.app-container{padding:0}}.header-logo{font-size:26px;text-align:center;margin-bottom:20px;letter-spacing:-.5px}h2{font-weight:400;font-size:24px;color:var(--text-main);margin:0}.form-group{margin-bottom:24px}input{width:100%;padding:13px 14px;font-size:16px;border:1px solid var(--border);border-radius:4px;color:var(--text-main);transition:.2s}input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 1px var(--primary)}.input-error{border-color:var(--error-text)!important}.btn-primary{background-color:var(--primary);color:#fff;border:none;padding:10px 24px;border-radius:4px;font-weight:500;font-size:14px;cursor:pointer;width:100%;height:40px;transition:background .2s}.btn-primary:hover{background-color:var(--primary-hover)}.btn-primary:disabled{background-color:#aecbfa;cursor:default}.btn-back{background:none;border:none;color:var(--primary);cursor:pointer;margin-bottom:15px;font-weight:500}.error-msg{background:var(--error-bg);color:var(--error-text);padding:12px;border-radius:4px;font-size:14px;margin-bottom:20px;display:flex;align-items:center;gap:8px}.link-text{margin-top:40px;font-size:14px;text-align:left}.link-text a{color:var(--primary);text-decoration:none;font-weight:500}.account-list{margin-top:10px}.account-item{display:flex;align-items:center;padding:12px 10px;border-bottom:1px solid #f1f3f4;cursor:pointer;border-radius:4px}.account-item:hover{background:#f8f9fa}.avatar{width:32px;height:32px;border-radius:50%;background:#5f6368;color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;margin-right:12px}.apps-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:16px;margin-top:20px}.app-card{display:flex;flex-direction:column;align-items:center;padding:16px;border:1px solid var(--border);border-radius:8px;cursor:pointer;transition:.2s}.app-card:hover{border-color:var(--primary);background:#f8fbff}.app-icon{font-size:28px;margin-bottom:8px}