* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    
    body {
        display: flex;
        justify-content: center;
        align-items: center;
        min-height: 100vh;
        background: url('https://images.unsplash.com/photo-1606107557195-0e29a4b5b4aa?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1964&q=80') no-repeat center center fixed;
        background-size: cover;
        position: relative;
        padding: 20px;
    }
    
    body::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(45deg, rgba(106, 27, 116, 0.7) 0%, rgba(235, 152, 78, 0.7) 100%);
        z-index: -1;
    }
    
    .auth-container {
        width: 100%;
        max-width: 500px;
        padding: 40px;
        background: rgba(255, 255, 255, 0.95);
        border-radius: 20px;
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(10px);
        transform: translateZ(0);
        text-align: center;
    }
    
    .auth-container h2 {
        color: #2c3e50;
        font-weight: 700;
        font-size: 32px;
        letter-spacing: 1px;
        margin-bottom: 30px;
        text-transform: uppercase;
    }
    
    .login-error {
        background: #ffebee;
        color: #c62828;
        padding: 12px;
        border-radius: 8px;
        margin-bottom: 20px;
        font-weight: 500;
        border-left: 4px solid #c62828;
    }
    
    form {
        width: 100%;
    }
    
    input[type="text"], 
    input[type="email"], 
    input[type="password"], 
    input[type="tel"] {
        width: 100%;
        padding: 16px 20px;
        border: 2px solid #e0e0e0;
        border-radius: 10px;
        font-size: 16px;
        transition: all 0.3s ease;
        background: #f9f9f9;
        margin-bottom: 20px;
    }
    
    input[type="text"]:focus, 
    input[type="email"]:focus, 
    input[type="password"]:focus, 
    input[type="tel"]:focus {
        border-color: #6a1b74;
        outline: none;
        background: #fff;
        box-shadow: 0 0 0 3px rgba(106, 27, 116, 0.2);
    }
    
    .password-container {
        position: relative;
        width: 100%;
        margin-bottom: 10px;
    }
    
    .toggle-password {
        position: absolute;
        right: 45px;
        top: 50%;
        transform: translateY(-50%);
        cursor: pointer;
        color: #7f8c8d;
        font-size: 20px;
        background: none;
        border: none;
        z-index: 2;
    }
    
    .toggle-requirements {
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        cursor: pointer;
        color: #6a1b74;
        font-size: 18px;
        background: none;
        border: none;
        z-index: 2;
        transition: transform 0.3s ease;
    }
    
    .toggle-requirements.active {
        transform: translateY(-50%) rotate(180deg);
    }
    
    .requirements-box {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        background: #f8f9fa;
        border-radius: 10px;
        margin-bottom: 20px;
        text-align: left;
    }
    
    .requirements-box.active {
        max-height: 200px;
        border: 2px solid #e0e0e0;
    }
    
    .password-requirements {
        font-size: 14px;
        padding: 15px;
        color: #2c3e50;
    }
    
    .password-requirements span {
        display: block;
        margin-bottom: 8px;
        padding-left: 20px;
        position: relative;
    }
    
    .password-requirements span i {
        position: absolute;
        left: 0;
        top: 2px;
    }
    
    .valid {
        color: #2ecc71;
    }
    
    .invalid {
        color: #e74c3c;
    }
    
    input[type="submit"] {
        width: 100%;
        padding: 16px;
        background: #6a1b74;
        color: white;
        border: none;
        border-radius: 10px;
        font-size: 18px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s ease;
        margin-top: 10px;
        letter-spacing: 1px;
    }
    
    input[type="submit"]:hover {
        background: #eb984e;
        transform: translateY(-3px);
        box-shadow: 0 7px 20px rgba(0, 0, 0, 0.3);
    }
    
    .auth-container p {
        margin-top: 15px;
        color: #2c3e50;
        font-size: 16px;
    }
    
    .auth-container a {
        color: #6a1b74;
        text-decoration: none;
        font-weight: 600;
        transition: color 0.3s ease;
    }
    
    .auth-container a:hover {
        color: #eb984e;
        text-decoration: underline;
    }
    
    .shoe-icons {
        display: flex;
        justify-content: center;
        gap: 15px;
        margin-top: 30px;
    }
    
    .shoe-icon {
        font-size: 28px;
        color: #6a1b74;
        transition: transform 0.3s ease;
    }
    
    .shoe-icon:hover {
        transform: translateY(-5px);
        color: #eb984e;
    }
    
    @media (max-width: 600px) {
        .auth-container {
            margin: 20px;
            padding: 30px 20px;
        }
        
        .auth-container h2 {
            font-size: 28px;
        }
        
        .toggle-password {
            right: 45px;
        }
    }

    /* Estilo unificado para los botones de tu aplicación */
.btn-register {
    width: 100%;
    padding: 12px;
    background: #6d28d9; /* Color violeta/morado de tu marca */
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

.btn-register:hover {
    background: #5b21b6;
}

/* Estilo para el botón flotante de WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.3);
    z-index: 1000;
    
    /* Esto centra el icono dentro del círculo */
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
}

.whatsapp-float:hover {
    background-color: #128c7e;
}