:root {
            --burgundy: #800020;
            --black: #000000;
            --gray-dark: #4A4A4A;
            --gray: #777777;
            --white: #ffffff;
            --green: #4caf50;
            --red: #ff4444;
            --gold: #FFD700;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Montserrat', sans-serif;
            background-color: var(--black);
            color: var(--white);
            padding: 2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            overflow: hidden;
            /* Oculta el scrollbar mientras se muestra el loader */
        }

        /* --- CONTENEDOR DEL LOGIN --- */
        .login-container {
            max-width: 450px;
            width: 100%;
            margin: 1rem;
            padding: 2.5rem;
            background-color: #1a1a1a;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
            transition: opacity 0.5s ease-out, transform 0.5s ease-out;
        }

        .xmax-header h1 {
            text-align: center;
            margin-bottom: 0.5rem;
            color: var(--burgundy);
            font-weight: 700;
            font-size: 2.5rem;
        }

        .xmax-header p {
            text-align: center;
            margin-bottom: 2rem;
            color: var(--gray);
            font-weight: 400;
        }

        .input-group {
            margin-bottom: 1.5rem;
        }

        .input-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: var(--gray);
            font-weight: 500;
        }

        .input-group input {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid var(--gray-dark);
            border-radius: 5px;
            background-color: var(--black);
            color: var(--white);
            font-size: 1rem;
            transition: border-color 0.3s;
            font-weight: 400;
        }

        .input-group input:focus {
            outline: none;
            border-color: var(--burgundy);
        }

        .password-wrapper {
            position: relative;
            display: flex;
            align-items: center;
        }

        .password-wrapper input {
            padding-right: 45px;
        }

        .password-wrapper .ph {
            position: absolute;
            right: 15px;
            font-size: 1.4rem;
            color: var(--gray);
            cursor: pointer;
            transition: color 0.3s ease;
        }

        .password-wrapper .ph:hover {
            color: var(--white);
        }

        .login-btn {
            width: 100%;
            padding: 0.85rem;
            border: none;
            border-radius: 5px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
            text-decoration: none;
            display: inline-block;
            text-align: center;
            background-color: var(--burgundy);
            color: var(--white);
        }

        .login-btn:hover {
            background-color: #991a28;
        }

        .mensajes.error {
            color: var(--red);
            font-size: 0.9rem;
            text-align: center;
            margin-top: 1rem;
            font-weight: 500;
            padding: 0.75rem;
            background-color: rgba(255, 68, 68, 0.1);
            border-radius: 5px;
            border: 1px solid rgba(255, 68, 68, 0.3);
        }

        .footer-links {
            text-align: center;
            margin-top: 1.5rem;
            color: var(--gray);
            font-weight: 400;
        }

        .footer-links a {
            color: var(--burgundy);
            text-decoration: none;
            font-weight: 500;
            margin: 0 0.5rem;
        }