*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{display:flex;background:#f0f2f5;justify-content:center;align-items: center;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.login-card{background:#fff;border-radius:12px;width:100%;max-width:380px;padding:40px 36px 32px;box-shadow:0 4px 24px #0000001a}.login-logo{color:#1a1a2e;text-align:center;margin-bottom:6px;font-size:28px;font-weight:700}.login-subtitle{text-align:center;color:#888;margin-bottom:28px;font-size:13px}.login-field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.login-field label{color:#444;font-size:13px;font-weight:500}.login-field input{outline:none;border:1.5px solid #ddd;border-radius:8px;padding:10px 12px;transition:border-color .15s;font-size:15px}.login-field input:focus{border-color:#5c7cfa}.login-error{color:#c0392b;background:#fff0f0;border-radius:8px;margin-bottom:16px;padding:10px 12px;font-size:13px}.login-btn{color:#fff;cursor:pointer;background:#5c7cfa;border:none;border-radius:8px;width:100%;margin-top:4px;padding:12px;transition:background .15s,opacity .15s;font-size:15px;font-weight:600}.login-btn:hover{background:#4c6ef5}.login-btn:disabled{opacity:.6;cursor:not-allowed}.login-hint{text-align:center;color:#aaa;margin-top:20px;font-size:12px}